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Why does my milk smell like eggs?

Understanding the Eggy Smell in Milk
If you’ve noticed that your milk smells like eggs, you’re not alone. This peculiar odor can be unsettling, but it often has identifiable causes rooted in the milk’s composition and handling.
Possible Causes of the Egg Smell
1. Bacterial Activity: One of the primary reasons milk may develop an egg-like smell is due to bacterial contamination. Certain bacteria, particularly those that produce sulfur compounds, can thrive in milk. These bacteria can originate from various sources, including the cow’s udder, milking equipment, or even during storage. When these bacteria metabolize, they can produce volatile compounds that emit a smell reminiscent of rotten eggs.
2. Diet of the Dairy Cows: The diet of the cows can also influence the smell of the milk. If cows consume feed high in sulfur-containing compounds, this can lead to the production of milk that has a sulfurous odor. This is particularly common in regions where the feed is supplemented with certain types of protein or minerals.
3. Storage Conditions: Improper storage can exacerbate the problem. Milk should be kept at consistent, cold temperatures to inhibit bacterial growth. If milk is left out at room temperature or stored in a less-than-ideal environment, it can spoil more quickly, leading to off-odors.
4. Milk Processing: The methods used in processing milk can also affect its smell. If the milk is not pasteurized correctly, or if there are issues with the equipment used during processing, this can lead to contamination and subsequent odors.
5. Breast Milk Considerations: If the milk in question is breast milk, similar principles apply. Factors such as the mother’s diet, hydration levels, and even the storage method can influence the smell. For instance, certain foods consumed by the mother can impart flavors and odors to breast milk, including those that might smell like eggs.
What to Do If Your Milk Smells Like Eggs
If you encounter milk with an eggy smell, it’s essential to assess its safety. Here are some steps you can take:
– Check the Expiration Date: Always start by checking the expiration date on the carton. If the milk is past its date, it’s best to discard it.
– Smell Test: Pour a small amount into a clean cup and sniff it. If the smell persists and is unpleasant, it’s advisable not to consume it.
– Storage Review: Consider how the milk has been stored. If it has been left out or not refrigerated properly, it may have spoiled.
– Consult a Professional: If you’re unsure, especially with breast milk, consulting a healthcare professional or a lactation consultant can provide guidance tailored to your situation.
In conclusion, while the smell of eggs in milk can be alarming, understanding the underlying causes can help you determine whether the milk is safe to consume or if it should be discarded. Always prioritize safety and quality when it comes to dairy products.

What does it mean when milk smells like eggs?

Hydrogen sulfide: Fairlife has acknowledged that the distinctive odor in their milk can be attributed to hydrogen sulfide, which is a compound that has a “rotten egg” smell. However, they assure consumers that this unique odor is completely normal and does not indicate any safety or quality issues (2). Learn more: 1.

What does spoiled milk smell like?

Smell: If milk has a bad smell, it may indicate spoilage. Fresh milk should have a mild, pleasant aroma. A sour or off smell usually means that bacteria have started to grow, and it’s best not to consume it.

Why does Fairlife milk smell like eggs?

Sometimes our products carry a bit of an unfamiliar smell upon opening. This is a result of our pasteurization and the higher protein, but it’s perfectly normal and totally safe. We’re working on solving this issue. We apologize for the poor experience with that!

Is it okay for babies to drink high lipase milk?

Is High Lipase Milk Dangerous to Your Baby? Dr. Chang points out that while excess lipase can change the taste of the milk, it does not make it harmful to the baby. In fact, it may even have benefits for your milk.

How to know if breastmilk is spoiled?

It will also smell bad, much like spoiled cow’s milk. And, like spoiled cow’s milk, breast milk that’s old will taste sour. (It’s fine to taste your breast milk to check!) Always label your pumped milk with a time and date so you can tell how old it is.

Why does my milk smell bad but it’s not expired?

It’s important to note that when milk ferments. It does not spoil or become unsafe to consume. The lactic acid in the fermented milk maintains. Its safety and protects it from further spoilage.

How to get rid of high lipase in breastmilk?

Scalding milk is believed to slow lipase’s action in the milk. Research shows that lipase is not responsible for the changes in smell. Removing lipase removes an important enzyme that helps the baby digest fats.

Why does my breastmilk smell eggy?

Once the milk is expressed, lipase may cause a rapid break down of fats in the expressed milk, causing a soapy smell and taste. If your milk smells “sour” or “rancid” this can be from oxidation.

What is the bad smell in breast milk?

The longer milk is kept at room temperature or even in the refrigerator before being frozen, the more lipase activity it will have. Milk that has a high level of lipase can develop a soapy smell and taste, but is not harmful to the baby.

Can you get sick from smelly milk?

A small sip of spoiled milk is unlikely to cause symptoms beyond a bad taste. Drinking larger amounts of spoiled milk can cause stomach distress resulting in abdominal cramping, vomiting, and diarrhea (like a food-borne illness). In most cases, symptoms caused by drinking spoiled milk resolve within 12-24 hours.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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