
August 3, 2026 -Name: Whey.
Age: As old as milk.
Appearance: Translucent, yellow-tinged.
What is it? Whey is what remains after you’ve made cheese: the milk curdles, the curds are strained and the whey is left over.
Yeah, but what’s in it? About 75% to 93% of it is water. The rest is lactose, protein and fat. Salty whey, produced when cheese curds are salted early in the process, also contains a lot of salt – as much as 10%.
What is it used for? Whey can be used to produce more cheese and cheese-style foods – ricotta, manouri and the caramel-like Norwegian spread brunost are made from whey – and the protein can be extracted for nutritional supplements. But salty whey is generally considered a waste product.