How long does colostrum last in the fridge
What Is It, Benefits & What To Expect
Overview
What is colostrum?
Colostrum (kuh-loss-trum) is the first milk your body produces during pregnancy. It forms in your mammary glands (breasts) and plays an important role in building your baby's immune system. If you plan on breastfeeding (nursing or chestfeeding), it's the first milk your baby will get from your breasts. If you don't want to breastfeed or if your baby is struggling to breastfeed, you can hand express colostrum. It's high in protein, vitamins, minerals and immunoglobulins (antibodies) that help build your baby's immune system. It's often called "liquid gold" because of its rich, golden color and valuable benefits.
What is colostrum made of?
Colostrum is high in protein and low in fat and sugar. It's filled with white blood cells that produce antibodies. These antibodies strengthen your baby's immune system, protecting him or her from infection. Colostrum is highly concentrated and nutrient-dense even in tiny doses, so your baby's tummy doesn't need a lot to reap its benefits.
What kind of nutrients are in colostrum?
Colostrum is rich in nutrients that protect and nourish your baby unlike anything else. It's made up of things like:
- Immunoglobulin A (an antibody).
- Lactoferrin (a protein that helps prevent infection).
- Leukocytes (white blood cells).
- Epidermal growth factor (a protein that stimulates cell growth).
It gets its color from carotenoids (an antioxidant) and vitamin A. Vitamin A plays a vital role in your baby's vision, skin and immune system. Colostrum is rich in magnesium, which supports your baby’s heart and bones, and copper and zinc, which also support immunity.
What's the difference between colostrum and breast milk?
Colostrum is a nutrient-rich first milk produced by your breasts during pregnancy. It changes to transitional breast milk a few days after your baby is born. However, small amounts of colostrum remain in your breast milk for several weeks.
There are distinct differences between colostrum and breast milk:
- Colostrum is filled with immunoglobins to boost your baby's immune system and protect it from illness.
- Colostrum has two times as much protein.
- Colostrum has four times as much zinc.
- Colostrum is lower in fat and sugar so it's easier to digest.
- Colostrum is thicker and more yellow.
What are the stages of breast milk?
There are three different stages of breast milk: colostrum, transitional milk and mature milk.
- Colostrum: Your first milk that lasts between two and four days after birth.
- Transitional milk: Begins approximately four days after birth and lasts about two weeks.
- Mature milk: Milk that lasts from approximately 14 days after birth until you are done producing milk.
When does colostrum turn to milk?
After approximately three or four days, colostrum will turn to transitional milk. This is often referred to as someone's milk "coming in." Your breasts will feel firm, tender and full. It means your milk supply has ramped up. By this time your baby's stomach has expanded and they can drink more milk each feeding. Once your milk supply is established and your body has stabilized, transitional milk changes to mature milk.
What makes colostrum turn to breast milk?
The pregnancy hormones created by the placenta help you create colostrum. The hormone progesterone drops significantly when the placenta separates from your uterus (after your baby is born). This drop in progesterone triggers your breasts to create milk.
Function
What is the purpose of colostrum?
The function of your breasts, or mammary glands, is to produce milk to feed your baby. Colostrum is more than the first milk your baby consumes after birth. It's highly concentrated with nutrients and antibodies to fight infection and protect your baby. It provides a powerful, unique immunity that only it can provide. Because your baby only needs a little bit of colostrum, it also helps them learn to suck, swallow and breathe during feeding.
What are the benefits of colostrum?
Colostrum builds your baby's immune system and provides concentrated nutrition. Some of the benefits of colostrum are:
- Helps strengthen your baby's immune system.
- Helps to establish a healthy gut by coating the intestines. This helps keep harmful bacteria from being absorbed.
- Offers ideal nutrition for a newborn.
- Has a laxative effect that helps your baby clear meconium (your baby's first poop) and lessens the chance of jaundice.
- Easy to digest.
- Helps prevent low blood sugar in full-term babies.
Why is colostrum good for newborns?
Colostrum has all the nutrients your baby needs in the first few days of life. It's also packed with nutrients and vitamins to strengthen your baby's immune system.
The flow of colostrum from your nipples is slow so your baby can learn to breastfeed (nurse). Learning how to breastfeed takes practice and requires your newborn to not only learn to suck and swallow but breathe at the same time.
Does leaking colostrum mean labor is close?
Colostrum leaking from your breasts doesn't mean labor is coming. Leaking colostrum is normal and some people notice it as early as the second trimester. Some don't notice any signs of leaking colostrum while others will see dried colostrum on their nipples. If you are leaking colostrum, you can wear disposable or washable breast pads.
Can you express colostrum if you're pregnant?
Colostrum can be expressed by about week 37 in pregnancy and is beneficial for some people. Using your hands to compress your breasts in a rhythmic pattern so that milk comes out is called hand expressing. Expressing colostrum before your baby is born carries some risks like contractions or premature labor. It can be beneficial to those at risk for premature birth, low milk supply or when certain health conditions present.
Speak with your healthcare provider before you remove colostrum from your breasts. If you are leaking colostrum, it may be safe to collect and store it for when your baby is born.
Can you pump colostrum?
It's difficult to pump colostrum with a breast pump because of its thick consistency. Most people recommend and prefer using their hands to express colostrum. Hand expressing colostrum usually produces more colostrum than a pump.
Anatomy
What does colostrum look like?
Colostrum is often a deep, rich yellow or orange color, almost like the yolk of an egg. This is because it contains high levels of beta carotene. It can sometimes appear white, clear or creamy. It's a thicker consistency than breast milk (or cow's milk), but the thickness varies from person to person. Colostrum is often sticky and can contain faint traces of blood (this is normal).
How do I know I am making colostrum?
Your body begins producing colostrum between 12 and 18 weeks in pregnancy. Most people will produce anywhere from a tablespoon to an ounce of colostrum within the first 24 hours of delivery. This slowly increases until transitional milk comes in around the third or fourth day. In most cases, you will not know if you are making colostrum, however, it's very rare to be unable to produce colostrum. You will know if your baby is getting colostrum if he or she is maintaining their weight and wetting diapers.
How long do you have colostrum?
Your body produces colostrum for up to about five days after your baby is born. It changes to transitional milk around this time, then changes again to mature milk after about 14 days. Traces of colostrum are present in your breast milk for up to six weeks.
Conditions and Disorders
What happens if you don't produce colostrum?
Most people will produce some colostrum — not producing it is rare. It's normal to feel like nothing is coming out of your breasts and worry that your baby isn't getting enough. Your baby only needs a few teaspoons of colostrum to fill their tiny stomach.
Care
How do you store pumped colostrum?
If you and your healthcare provider decide it's safe to express and store colostrum, there are a few rules to follow. First, you should ensure the colostrum is stored in a sterile container or syringe. It can be kept in your refrigerator for about two or three days. It must be moved to a freezer after three days. Colostrum can be kept in a freezer for at least three months.
Frequently Asked Questions
How much colostrum does a newborn need?
Your newborn's tummy is about the size of a marble. They only need about an ounce of colostrum per day. This equals about a teaspoon each feeding (you can expect to feed your newborn eight to 10 times the first few days). The amount of colostrum (and then transitional milk) your baby needs increases slowly each day as their stomach expands. As your body transitions to producing regular breast milk, your milk production will increase to meet their needs.
Do I need to supplement?
No, you shouldn't need to supplement. A tiny bit of colostrum goes a long way in filling up your baby. Check with your healthcare provider to make sure your baby is gaining weight. If your baby is wetting diapers and seems pretty happy, supplementing is usually not necessary.
Is it okay to squeeze out colostrum?
Yes, it's usually OK to squeeze out colostrum once you reach full-term pregnancy (37 weeks). Check with your healthcare provider if you wish to do this prior to your baby being born. If you want to hand express colostrum for your newborn, follow these steps:
- Cup your breasts with your hand in a "C" shape. Four fingers should be under your breast and your thumb should be above your nipple.
- Use your thumb and index finger to gently squeeze your areola and nipple.
- Repeat several times and in a pattern. Apply firm pressure but do not slide your fingers. If colostrum doesn't come out, try moving your fingers to another spot.
- Colostrum should slowly flow out within minutes. It's thick and comes out in drops.
- You can repeat this a few times per day.
Please note that expressing colostrum before your baby is born carries risks. Some people can go into premature labor or begin having contractions. Talk to your healthcare provider before you express colostrum.
A note from Cleveland Clinic
Colostrum is the first milk produced by your breasts. It's rich in nutrients and high in antibodies and antioxidants. Getting started with breastfeeding can be difficult and usually requires assistance, so don't be ashamed to ask your healthcare provider for help. Breastfeeding early and often is the best way to make sure your baby gets the many benefits from colostrum. Hand expressing colostrum and feeding your baby with a syringe is also an option. Ask your healthcare team for help if feeding your baby colostrum is something you wish to do.
Pumped Colostrum and How to Store It
Now reading: Liquid Gold: Pumped Colostrum and How to Store It
PrevNextThe birth of a baby is an exciting time, but it can also be overwhelming for new mothers. You’re faced with incredible physical and emotional demands, and the new chapter is only beginning. You’re now ready to take your first step along your breastfeeding journey.
It’s common for new mothers to struggle with nursing. In fact, 92% of new mothers struggle with breastfeeding in the first three days post-partum. Breastfeeding isn’t always successful on the first try. Babies often have difficulty latching on, and sometimes a mother’s milk supply isn’t abundant. Luckily, pumping is an effective way to express milk for the baby and helps produce and maintain milk supply for mom.
The earliest supply of milk – colostrum – has some of the most important nutrients mothers can supply their newborns. Colostrum is essential to babies in the first few days after birth. To set yourself up for success, it’s helpful to know what to do with pumped colostrum and how to store it.
Why is Colostrum Important?Until full milk production begins two to three days after birth, new moms produce small amounts of colostrum. Also called “liquid gold,” this thick, yellowish milk is rich in nutrients and carbohydrates. In addition to providing essential nutrition to the baby, colostrum helps with digestion and bowel movements in newborns. This is important in ridding the baby’s body of toxins that can cause jaundice.
Colostrum is also high in white blood cells and antibodies that develop the baby’s immune system. It builds a protective coating in their digestive system that helps prevent the growth of disease-causing germs. It’s a baby super-food and is an invaluable asset to their health and well-being.
What to Do with Pumped ColostrumA baby only consumes small amounts of colostrum in its first days. Regardless, studies show that expressing these low quantities within the first hour of birth can prevent delays in milk production. If a newborn doesn’t nurse within six hours after birth, it’s a good idea for mom to begin pumping. Make sure your hands are clean and that any collection tools are sterilized for the baby’s safety. Once you’re ready to pump colostrum, you’ll want to follow these next steps.
1. Collect It in a ContainerMany new moms prefer to use a syringe or Hegen’s revolutionary press-to-close, twist-to-open airtight storage bottles to collect colostrum. As you pump the breast, you’ll notice beads of liquid forming. Gather this in one of the containers and, once complete, put the syringe in a sealable baggie or close the bottle tightly. Then, write the date on the container so you can keep track of your stored supply.
2. Feed It to Your BabyOnce you’ve collected colostrum, it’s ready for consumption. You can administer it via a syringe or small bottle (remember, quantities will be relatively low). You can also feed drops of it to your baby on a clean finger. Every bit is packed with nutrients to help your baby’s development.
3. Store It for Future UseIf your colostrum production is going well and you’re building up a steady supply, you can store it for future use. In fact, some women begin collecting their colostrum before the baby actually arrives. In a typical healthy pregnancy, there’s no need to express colostrum before giving birth. However, in some instances, it’s beneficial to collect colostrum toward the end of the pregnancy. Harvesting colostrum this early may be recommended if:
- You’re having twins – birth weight tends to be low for multiples.
- You have health concerns – gestational diabetes can affect the baby’s glucose levels at birth.
- Your baby has a cleft lip or palate – this can make breastfeeding difficult.
Whatever the case, pumped colostrum can be collected and saved for when the time is right.
4. Bring It to the HospitalIf you do decide to pump and store your colostrum before giving birth, be sure to include this in your hospital bag list to take along with you when you head to the hospital for delivery. Carry it in an insulated bag with ice packs and ask the nurse to store it in the maternity ward’s refrigerator until you’re ready to use it. This colostrum will be safe for use for up to 48 hours.
4 Tips for Storing ColostrumBreastfeeding mothers can ensure the safety and quality of expressed breast milk by following proper storing techniques. Consider these four tips for storing colostrum safely.
Properly Seal the ContainerTo maintain freshness and quality, be sure your storage container is completely sealed. Never use disposable bags or liners to store pumped colostrum. These aren’t designed to protect against bacteria and germ growth.
Consider Shelf LifeColostrum can be stored at room temperature for up to four hours. It can remain in a refrigerator for up to four days. You can store pumped colostrum in the freezer for up to six months (for best quality) or 12 months, at most. If you’re uncertain about how long your colostrum has been stored, it’s best to dispose of it. Better safe than sorry!
Placement MattersWhen storing expressed colostrum in the refrigerator or freezer, set the container at the back of the shelf where temperatures are coolest. Avoid storing it in the door compartment, as opening and closing the fridge will expose stored colostrum to frequent temperature changes that can negatively impact its quality and freshness.
Store It On-the-GoWith careful planning, it’s possible to travel safely with stored colostrum. Pack the container in an insulated bag and surround the colostrum with ice packs. It can remain safe for consumption this way for up to 24 hours. When your journey is over, use it right away or store it in the fridge or freezer.
Additional Colostrum Questions
We've received quite a few questions from moms who have reached out to us.
We will continually add to this post as we receive new questions and want to thank those who have helped to provide us with great questions that will eventually help so many other new moms!
Is Frozen Colostrum good for a sick baby?Yes, frozen colostrum does help a sick baby. Research studies have proven that sick or preterm infants who take colostrum from mothers have “significantly better health outcomes”. Colostrum is made up of immune factors, protein, sugar, and facts. Therefore, every drop counts!
How Long Does Colostrum Last in the Freezer?
Colostrum can last 2 to 6 months with a separate door freezer (5 degrees Fahrenheit or -15 degrees Celsius) with proper storage.
What Should I Do with Frozen Colostrum That's Been Stored For More than 6 Months?
If the colostrum has been stored with a deep chest freezer (-4 Fahrenheit or -20 Celsius) is fine!
How Do I Pump Colostrum After Birth?
Colostrum is thick, sticky, concentrated milk. The best way to collect the colostrum is by hand expressing. Remember the best pump is still the baby. If your baby suckles well, you can just concentrate on latching for the first few days. Unless a baby is separating from his/her mother due to medical reasons, you, as a mother, need to start pumping 8 to 12 times a day.
What is the Best Way to Reheat Colostrum (if any) or Best Methods For Thawing Colostrum For the Baby?
Place the frozen container in the refrigerator the night before you intend to use it. Then warm the milk by placing it in a bowl of warm water or by simply using an electric warmer.
Are There Any Negatives to Giving Colostrum to a Toddler?
Colostrum will not negatively affect toddlers because of the amazing antibodies in the breast milk!
Is Colostrum Considered Better Than Breast Milk?
It is important to note that breast milk changes from colostrum, transitional milk to to mature milk to meet your baby’s nutritional needs at the different stages.
Tips For Hand Expressing Colostrum
Starting by massaging the breast with clean hands to help milk flow. Then by placing your thumb and the rest of your fingers on either side of the areola, about an inch away, gently push your fingers back & towards your chest wall, then compress the milk ducts of the breast, and roll the tissue forward & towards the nipple. Be sure not to squeeze the nipple or slide fingers along your skin.
When is the Best Time to Start Expressing Colostrum?
From 36 weeks of gestational age onwards, mothers are encouraged to harvest colostrum with a proper technique. You can start 2 or 3 times a day and each time for about 3 to 5 minutes, but you'll need to stop if you experience cramps or early contractions to avoid premature delivery.
How Long Do You Produce Colostrum For After Birth?
Colostrum is usually produced for the first few days (usually 3 days ) after the baby’s birth. However, some mothers might not see colostrum until day 5 after giving birth due to various factors.
Can you collect some Colostrum and then pump some more later and add to the original bag?
If the colostrum was stored inside the freezer or fridge and you need to add more to it later, you need to ensure the colostrum is the same temperature. We would suggest to first store the second round of colostrum in a different container and keep it inside the fridge for at least 1 hour. This allows the milk to cool to the same temperature as the initial container which makes it safe to combine.
You can also opt to align their temperatures by keeping it out. Please make sure it remains under 77°F (under room temperature). At this temperature, it can last for approximately 4 hours. This allows for ample time to combine the two containers together but do kindly ensure proper hygiene to minimize contamination.
Hegen Helps New Moms Pump and Store Their Colostrum
Today’s women are juggling their passions, careers, and responsibilities with the full-time job of motherhood. While it’s a wonderful adventure, being a mom brings numerous challenges. Breastfeeding shouldn’t be one of them. At Hegen, we want to make breastfeeding easier, rewarding, and empowering. From state-of-the-art breastmilk storage supplies to educational resources, we cover all the bases for you as you transition to your new role.
You are free to browse our storage containers as well as our 2 oz bottles (which double as colostrum collectors) which can help you on your breastfeeding journey!
How to properly store colostrum: cooling and freezing
As a rule, in the first days of life, calves cannot drink all cow colostrum, because its volume is many times greater than the needs of a calf. Therefore, it is important to leave colostrum for future generations of calves. But how to save it and at the same time not lose the valuable properties of the product?
During the first day of life, calves need only 30 - 50 percent of the excreted colostrum. The remaining product must be left for future calves: cool and freeze. It is important to carry out the freezing process correctly so that the colostrum does not lose its original properties.
It is necessary to store colostrum only from clinically healthy cows that have negative test results for tuberculosis, brucellosis, leukemia.
Colostrum freezing
- Colostrum cooling stage. Within 8 days the product can be stored at temperatures up to 40 degrees. And when creating a tight container, colostrum can be stored for up to two weeks. After the expiration date, the active development of dangerous bacteria begins, which change the structure of proteins and release toxic components.
- Colostrum freezing stage. The product is usually frozen in a plastic container with a volume of 2 or 3 liters, the freezing temperature ranges from 18 to 200 degrees below zero . Under such conditions, the vital activity of microorganisms stops, the loss of valuable substances of colostrum is excluded. Fat content, protein level, dry residue and pH remain unchanged. Therefore, the number of immunoglobulins in colostrum is preserved.
This freezing technology provides quality summer colostrum for calves born in winter and spring. A frozen one-day product for 4 months almost does not change its properties. Studies of colostrum have shown that within six months the number of carotene components decreases by only 6 percent. This means that the product is still suitable for feeding newborn calves.
Therefore, it is extremely important to have a colostrum bank, which guarantees good immunity to the calf from the first days of life. To thaw the product, colostrum thawers should be used so as not to spoil the original properties and to ensure uniform heating.
Benefits of colostrum
Research has also shown that frozen colostrum is an effective product against rotavirus diarrhea in babies. It has been empirically proven that the mortality rate among calves who were not given colostrum was 13 percent, and among newborns who received colostrum from the mother - 6 percent. Of the babies who were drunk with frozen colostrum, no one died.
Remaining colostrum is often used for watering calves that are 5-10 days old. This helps raise the calf weight gain by about 10 percent. As a rule, colostrum is diluted with pure water in a ratio of 3 to 2 , because this product contains a very high concentration of proteins and fats.
Featured Articles
Calf coughing: what to do?
Pasteurization of milk: pros and cons of the process
The calf does not stand up: what to do?
when it appears, how many days it gives, composition, storage
Content
- 1 What is cow colostrum
- 2 Composition and properties of colostrum
- 3 When does cow colostrum appear
- 4 How many days does cow colostrum give 5 cows provide colostrum
- 6 Use of colostrum
- 7 How to store colostrum
- 8 Conclusion
For thousands of years, people have consumed and valued milk for its nutritional benefits. And one of its forms - colostrum - is credited with healing properties. There are no analogues to this substance. Colostrum appears in a cow during the first days after calving, it is the only product that the calf's body can perceive.
What is bovine colostrum
Colostrum is a specific secretion from the mammary gland that can be secreted from all mammals (including humans). It begins to be produced by the body individually in each case - starting from the 6th month of pregnancy and ending on the 10th day after childbirth.
Due to the limited amount of colostrum, it is of high value. Many scientific studies have confirmed its benefits. It is completely different in composition from the milk that a cow begins to give a couple of weeks after calving. It is especially widely used in immunology, due to its composition and useful properties.
Composition and properties of colostrum
Cow colostrum is a thick, sticky liquid with a pronounced yellowish tint. The following properties have been scientifically confirmed:
- powerful immunomodulatory;
- restorative;
- supporting;
- hepatoprotective.
When used, the main effect is directed to the digestive system. Being absorbed by the intestinal walls, it reduces the content of bilirubin, and also protects the body from many diseases and infections.
The most valuable property is the immunoprotective effect. This is due to the presence of a high concentration of immunoglobulins, a type of protein that forms on the surface of B cells. Their active production begins with the penetration of antigens into the body. Immunoglobulins play an important role in the resistance of the immune system to various diseases.
Important! All known types of immunoglobulins were found in the composition of colostrum - IgA, IgG, IgD, IgE, IgM. The highest concentration falls on IgA, which is responsible for the immunity of the respiratory and digestive systems. It is this immunoglobulin that is practically not produced by the child's body and the best option for obtaining it from the outside is cow colostrum. Therefore, many pediatricians advise including this product in the child's diet.
Cytokines, including interferon, are also abundant. They are responsible for the interaction of immune cells with each other. The production of cytokines is possible only in the presence of lactoferrin, which is also contained in it. In addition, it contains components that stimulate and support the growth of the child's body:
- insulin-like;
- platelet;
- transforming;
- epithelial.
The product contains many amino acids essential for children and adults.
When does colostrum appear in a cow
Colostrum appears differently in every cow. However, this is an accurate harbinger of imminent calving. On average, it appears 2-3 days before the birth of the calf, and production stops on the 4-5th day of feeding the calf. But sometimes it is formed in the udder 10 days before birth and can be produced by the mammary glands for a week and a half of feeding.
How many days does a cow give colostrum
On average, the production of colostrum in a cow takes 7-8 days, but this period can be longer - up to 20 days. It can only be given by a pregnant cow.
How much colostrum a cow gives
Like traditional milk yield, the amount of colostrum directly depends on the external conditions in which the cow is kept, the characteristics of her body. The capacity of the abomasum of a newborn calf is only 1.5 liters. That's how much he can use at one time. Since the cub eats 3-4 times, the average rate of milk production in a cow is 6 liters per day.
After calving for 8-10 days, it completely loses its properties and turns into ordinary milk.
The use of colostrum
Isolation takes only 5-10 days, which makes it a particularly valuable product. You can't get it at any time. Despite this, large farm enterprises have organized the calving schedule in such a way that they supply large quantities of the product on a regular basis.
Large quantities of this product are most needed by the pharmaceutical industry. It is used for a number of drugs for the treatment and prevention of diseases of various origins:
- infections and diseases of the respiratory tract, including asthma;
- diseases of the gastrointestinal tract: ulcers, colitis, gastritis, pancreatitis;
- disorders in the musculoskeletal system: osteochondrosis, polyarthritis, rheumatoid arthritis;
- for nervous disorders: fatigue, depression and loss of vitality.
It is also widely used in the treatment of various autoimmune diseases.
A person can consume pure colostrum. However, it has a rather specific taste, smell and texture, so few people like it. The appearance of cow colostrum is shown in the photo.
To get all the useful components contained in it, many people prefer the colostrum supplement, which is made from it. This supplement is used in the following dosage:
- infants 6-12 months - 10 g in the morning and evening;
- children 1-3 years old - 10-15 g twice a day;
- older children and adults 15 g twice a day.
Cows also actively use the "first milk" in cooking. The most popular "first milk" dish is an oven-baked casserole with added sugar and eggs.
Attention! Due to the chemical composition of cow colostrum, texture and properties, it is not used to make fermented milk products, butter and cheese.
How to store colostrum
Colostrum is not a common product, so storage is an issue for farmers and customers. Shared by 2 popular storage methods:
- In the refrigerator. In the refrigerator at a standard cooling temperature, colostrum can be stored for up to a week, after which it loses its properties and quality, as the lg-concentration decreases. It is important that the refrigerator maintains an optimal temperature regime (1-2 degrees). Otherwise, improper storage will provoke intensive growth and development of bacteria. As soon as the souring processes began in it, the quality begins to drop rapidly. The most important molecules for human health, which supply passive immunity, are destroyed under the negative influence of bacteria. This is due to the short shelf life of the product in the refrigerator.
- In the freezer. Without a significant effect on the beneficial components, it can be frozen for up to 1 year. As part of one study, an experiment was conducted with the storage of a dairy product under freezing conditions for 15 years. After that, in laboratory conditions, the content of lg-components in it was checked. Their number has practically not changed. Modern freezers with No Frost technology are not suitable for long-term storage, as they go through many cycles of freezing and thawing, which will inevitably thaw the colostrum. And this will negatively affect its shelf life. The freezer must constantly maintain a temperature of no higher than -5 degrees, and these indicators must be monitored.