Why does lactose-free milk taste sweeter than normal milk?

Question

Theres a mild sweetness to it.

In: Chemistry

Answer 1

When lactose is broken down, either by heat or with enzymes, it makes glucose and galactose. Both of those taste much sweeter to us than lactose. To make lactose free milk, they just break down the lactose into the glucose and galactose, so with so much more floating around, it tastes sweeter