Why Did My Almond Milk Turn Blue?

Fermentation and petrification (decomposition) activities cause pH fluctuations. Bacteria use oxygen at several stages during this process. When you add methylene blue to milk, it becomes blue and stays that way as long as there is oxygen in the milk.

When milk turns blue, what happens?

It’s vital to pay attention to when you discover a blue tinge in your breast milk to figure out what’s going on. Chances are, it’s exactly when you first start pumping or feeding. “Blue breast milk is frequently a symptom of low-fat milk, similar to skim milk,” says Dr.

When it comes to almond milk, how can you know when it’s past its prime?

In addition to being super pasteurized, shelf stable almond milk is packaged in sealed, sterile Terta Pak cartons that allow it to be stored at room temperature while unopened. The carton should be kept in the refrigerator once opened, and most brands recommend using the milk within 7-10 days of opening. However, don’t throw away the milk after those dates because it can still be good. When it does, how will you know? “It’s obviously tougher to discern,” Carolyn explains, “but once the milk turns sour, you pretty much know.” “It has a sour taste to it, is thicker and may clump up, and has an odd odor.”

Is it true that milk becomes blue?

A mother posted a video of her breast milk becoming blue, which one expert says is entirely normal.

Breast milk can also change color, turning pink, green, or beige, which can be surprising to new mothers.

Crina-Natalie Worley, a 23-year-old mother of three, expressed her dissatisfaction with the situation “She stated she was “amazed” by the human body as she displayed the pale blue-tinged fluids.

The Australian wrote on TikTok that her milk has turned blue “My body is creating antibodies to fight it off since my son is unwell.”

Breast milk contains the mother’s antibodies, which are passed on to the baby and provide immunity to a variety of ailments.

However, an expert indicated that the blue tinge is more likely to appear due to the fat content.

“The fore milk, which is the initial half of your baby’s feed, is a paler blueish color and is designed to fulfill your baby’s thirst.

“The hind milk is the following phase of the feed, and it contains all of the fats and nutrients that the infant requires. This is what fills up the baby and might be white, cream, or a pale brown tint.

“When the temperature outside rises, your breasts and body are so intelligent that they naturally provide more of the thirst-quenching fore milk for the baby.”

Because fore milk is lower in fat, it’s critical that the baby receives adequate hind milk.

According to Donna Murray, a registered nurse with a Bachelor of Science in Nursing from Rutgers University, blue-tinged milk can also be a result of how it is stored after being pumped.

She penned the following piece for the Verywell Family: “Breast milk can vary slightly when you pump and refrigerate it. Breast milk can divide into layers in the refrigerator.

“On top, there may be a thick white or yellow creamy layer, and on the bottom, a thinner clear or blue-tinted layer.

“It’s only that the fat rises to the top as it sits. When you’re ready to use it, all you have to do is gently swirl the bottle to blend the layers.”

What happened to my milk that turned purple?

Breastmilk is often white or light yellow, but you can pump milk in any color of the rainbow! Photos of various colored breastmilk are shown here, along with explanations for why the hue may change.


A cracked or injured nipple is the most prevalent cause of red breastmilk, which causes blood to leak into the bottle with your breastmilk. This might happen if your breast shields are the wrong size or if you and your infant are having difficulty latching.

Breastmilk with blood in it is safe to feed to your baby, albeit it may upset his or her tummy.

If you’re not confident that your red breastmilk is caused by blood (for example, if you don’t notice any damage or if the color changes hours after you pump it), you should consult your physician before feeding it.

When all of the above factors are present to a lesser degree, pink breastmilk can result.

Dark Yellow/Orange

Breastmilk is typically a deeper yellow or even orange color in the first week or so after delivery. Breastmilk then transforms into “mature” milk, which is lighter.

The photo below compares early transitional milk to milk pumped a few weeks later:

Beta carotene is an orange pigment present in a variety of fresh fruits and vegetables. Orangish breastmilk can also be caused by eating meals strong in beta carotene, like as carrots or sweet potatoes.


Eating green foods is the most prevalent cause of green breastmilk. Green food colouring or eating a lot of green veggies like kale or spinach will turn your pumped milk green.


Breastmilk that is blue in color is rather frequent, especially as breastmilk separates. The milk pumped at the start of a pumping session (also known as foremilk) is usually watery and bluish in color, whereas milk pumped later in the session (also known as hindmilk) is creamier and thicker.


Remaining blood in your breasts could be the cause of brown breastmilk. (One of our Facebook group’s exclusive pumpers showed the photo below to her doctor, who felt this was the problem and referred to it as “rusted pipes.”) Her milk was a more typical hue the next time she pumped.)

What’s the deal with the blue milk?

The Milk Stand’s menu is as follows: The two different hues also indicate two different flavors: Blue has dragon fruit, pineapple, lime, and watermelon flavors, while Green has mandarin orange, passion fruit, grapefruit, and orange blossom flavors.

What’s the deal with my breast milk being green?

Mature milk may have a green tint or be quite green, but neither is a symptom of a problem. Greenish tinted milk can occur as a result of a diet high in leafy green vegetables, or it can be a natural variation.

Note: Duct ectasia can be identified by a thick, green sticky fluid that seeps or can be expressed from the breast. Though it’s a harmless ailment, if you have green discharge at any time, please schedule an appointment with your healthcare professional.

Does mastitis affect the color of the milk?

Seeing your breast milk change color can be unsettling, but knowing what the different colors indicate can help put your mind at ease:

Yellow or orange breast milk

Transitional milk and colostrum can be yellow or orange in color. If you eat a lot of yellow or orange foods like carrots or sweet potatoes, mature milk can become yellow or orange as well.

Pink or brown breast milk

Beets, as well as foods prepared with artificial food coloring, such as soda and gelatin sweets, could be to blame.

A pink or brown color, on the other hand, could indicate the presence of blood in your breast milk. This can be caused by sore and bleeding nipples, “rusty pipe syndrome” (old blood in the milk ducts as a result of increased blood flow to the breasts), or benign milk duct growths known as papillomas.

Pink or brown milk can also be caused by a breast infection called mastitis or, far more infrequently, breast cancer.

Why is the color of my breast milk different on each side?

Editor’s Note: This article was first published in August 2014, however it has been reviewed and updated to bring you the most up-to-date information. This was our most popular blog post of the year!

When asked if we may take milk from approved donors whose milk may vary in color and scent, we always say YES!

Because the nutritional makeup of breast milk changes frequently, it does not always appear the same. Breast milk is developed to fulfill the changing needs of a baby’s development.

The color of a mother’s breast milk is mostly determined by her diet. Food colors in foods and drinks, for example, can change the color of breast milk. It could be thin and watery in appearance, with a blue or yellow hue. It may even take on a tint of green if you eat a lot of green-colored meals. In most cases, the color of the milk isn’t a cause for concern.

This is a regular situation. Moms may be anxious that their breast milk will have a strange flavor or odor. The breakdown of fat into fatty acids by an enzyme called lipase (which occurs naturally in breast milk) can cause a change in the taste and smell of preserved breast milk. It may have a soapy or metallic taste, which is not hazardous, but some babies may object to the taste and refuse to drink the milk. This happens to a small percentage of mothers, although it is more common in those with a high lipase activity. There’s nothing wrong with your milk’s lipase levels; it just breaks down fats more quickly.

Your breast milk is totally OK to donate as long as it is preserved properly after being expressed.

How does nasty almond milk appear?

If you opened your almond milk bottle about a week ago and want to be sure it’s still good to drink, the easiest thing to do is smell it. Other symptoms almond milk has gone bad, according to Carolyn Flood, co-founder of NotMilk, include a sour flavor, a thicker texture, and an odd odor. It is not spoilt if the almond milk separates; this is a natural occurrence with almond milk. If you notice clumps, pour it out and start over. Make your own almond milk if you’re feeling experimental. At the very least, you’ll know it’s new.