Is the milk spoiled when a thin layered textured appears in the bottom of pan?
I use Pasteurized Amul milk (see here). Last time, I purchased it on May 3rd and has expiry as today, 05-05-19.
(Outside temperate in our area is around 35-40 degrees)
I keep it (packaged when not boiled, in pan once opened and boiled) in the fridge all the time except when it is used. I first brought it out on May 4th morning, boiled it and used half of it (total 500 ml). Stored the remaining again in fridge in pan.
I boiled the remaining milk just a few minutes ago (tonight will be expiry).
Here's what I observe:
- Mostly, I see no layer or negligible layer when I first boil the milk on 4th
- When I boil it again next day in same pan (I don't change the pan during whole process), there's still fat in it, a creamy yellow layer on top but the bottom layer (highlighted in image) is perfectly noticeable this time.
Now, I don't note any sour taste or bad smell or the curd like solids in it. It seems fine to me.
But does this layer mean it has started to go sour and will rise eventually?
Best Answer
This layer just means some milk proteins have cooked onto the bottom of the pan, and says nothing at all about the age or condition of the milk. It's more likely when you boil a smaller quantity due to the more rapid heating. Stirring can help avoid this.
However repeated heating and cooling isn't generally a good idea. With milk you can get away with it but it would be a better idea to boil only what you need (which would also be quicker and use less energy).
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Quick Answer about "Is the milk spoiled when a thin layered textured appears in the bottom of pan?"
This layer just means some milk proteins have cooked onto the bottom of the pan, and says nothing at all about the age or condition of the milk.What happens if you put milk in a pan?
Explanation. When you add milk to a dry pan, it flows into microscopic imperfections in the pan bottom. As the milk heats, its proteins coagulate and stick to the pan and each other.What is the yellow layer on milk?
It is milk fat.What is the film that forms on heated milk?
Milk skin or lactoderm refers to a sticky film of protein that forms on top of dairy milk and foods containing dairy milk (such as hot chocolate and some soups).Why does milk turn gooey?
Signs your milk has spoiled With enough time, the texture and color of milk that has spoiled will change as well. It may begin to develop a slimy, chunky texture and dingy, yellow color.Five Ways to use Spoiled Milk in Five Minutes.
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Images: Kelly L, Plato Terentev, Daniel Maldonado, Monstera