Does reduced fat milk contain additives to mimic the taste of whole milk?
I was told by a chef who trained me to make certain dishes, as well as certain baked goods that when using milk, the "healthier" option is to use whole milk over any other sort of reduced fat milk. I read the same thing on the Guardian but it's hardly a reputable source for cooking advice.
His reasoning is that milk that has had fat removed from it contains artificial sweeteners or other additives to closer mimic the taste of whole milk. He clarified that this doesn't hold true when cream comes into the equation, but was adamant that whole milk was the best option when a recipe specified "milk".
Is this a true statement? Do non-whole milks contain additives to mimic the missing fat content? Is whole milk objectively "healthier"?
Best Answer
In most countries, ingredients have to be listed. Are there any additives listed where you are? There aren't in the UK.
The sweetness of milk (lactose) is soluble in water and not in fat, so removing the fat won't remove lactose. In fact it will slightly increase the concentration. Whole milk has 3.7 g fat and 4.7 g sugars per 100 ml; skimmed milk has <0.5 g fat and 5.0 g sugars. Replacing the lost fat. Within rounding error the extra sugar is accounted for by replacing the fat with more of the non-fat components of milk.
If the manufacturers were going to add stuff to make it more like whole milk, you'd think they'd do a better job of it. I normally have semi skimmed on cereal and to make hot chocolate, and the difference between that and either whole (rich) or skimmed (watery) is significant.
When you come to processed dairy products it's a different story, and this may be the source of someone's confusion. Fruit yoghurts take this to extremes, as fat-free versions are more likely to include thickeners (typically corn starch or pectin, so nothing unusual) and "light" versions have sweeteners, water, flavourings, and in this particular example gelatine. This is also the case in the Guardian article you link - the relevant quote is
Often, flavorings such as chocolate and strawberry and sugars are added to low-fat and skim milk to make up for the loss of taste when the fat is removed
which is pretty clearly referring to milk-based drinks and not to milk (it goes on to mention added sugar). So the article isn't (necessarily) wrong, but isn't particularly useful.
As for recipes, most specify, if they don't, use whatever you have anyway/prefer. Preferences vary with time and place; many years ago the only way to get skimmed milk was to skim it yourself, probably to use the cream for something.
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Does low-fat milk have additives?
Milk contains protein, natural sugars and fat, along with natural calcium. The difference between whole, low-fat and fat-free has to do with the amount of milk fat, which is separated mechanically. Apart from vitamins A and D, chemicals are not added during the processing of milk.Does low-fat milk taste different from whole milk?
Low-fat milk still has a creamy flavour like full cream milk, with a texture that is slightly thinner and less rich in taste. Low-fat milk can be used in just about everything that regular milk is used for, it just won't have quite as creamy taste, and baked goods will have a slightly less tender result.Does whole milk have additives?
Milk is also pasteurized, a heat treatment used to kill anything that may cause diseases, like bacteria. The amount of processing between skim and whole milk is relatively the same. Chemicals are not used in either case, and the only additives to the milks are vitamins A and D.Can I use reduced-fat milk instead of whole milk?
Most varieties of drinking milk (nonfat, low-fat or whole) may be used interchangeably in baking. If using nonfat or 1 percent milk, you sacrifice richness. If you want to cut some fat in your baking, it's best to use 2 percent.Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Julia Filirovska, Anna Tarazevich, Valeria Boltneva, Artem Podrez