I read a litte about квас and learned that is is a mildly alcholic malt beverage made from bread and could contain additives such a fruit.

But what does it really taste like- light beer? Is is sour like beer, or is it it sweet like the "awful" non-alcholic malt beverages you can find in American supermarkets.

Who drinks it, everybody including children. Why is it drunken and when? Is it drunken because it tastes good and is refreshing, or is it like coffee, something that in reality tastes bad but is an enculturated habit.

Can it be bought in the US?