Correct: acid in the biological context means free hydrogen ions. A hydrogen ion is a proton, and the fundamental taste of acidity is due to hydrogen ions interacting with specific membrane proteins on your tongue.

Is nice! Great light weight version of quark :3

It's typically known as ‘sour cream’ in English-speaking countries, although apparently the specific product can differ.

In Eastern Europe, it can be added to soups, particularly borscht; works well in some burrito-style wraps (shawarma, spring rolls and such) and on sandwiches, instead of mayonnaise, ketchup or whatever. Or better yet, it goes nicely together with tomato sauces, hot sauces or mustard, especially if not mixed but put next to, so both sauces are tasted together.

But especially, you want to get some crepes, wrap marinated mushrooms in them, and dip into sour cream mixed with strawberry jam. It's fantastic.

It is rather close to sour cream. They can replace each other without major issues.

As per previous comment. Lower calorie / fat. With a beschmel I would be adding cheese etc

The Wikipedia image looked watery which was the part I didn't like. Cream cheese is fine IMO

never have liked cheese cake

if you like it, more power to you and there is more for you because I wont have any!

I hate cottage cheese but also I am lactose intolerant, so the whole thing just gives me the "that is bad" vibes

NOT IF I EAT IT WITH PICKLED CHERRYS AND APPLE COMPOT FIRST!!