>>513938961
You just never drank good kvas. The one you have in Poland is lithuanian kvas sucks ass. It's watery, ukrainian kvas is more rich and feels like a bread drink which it is and should be.
Pic related kvas is the best I have ever drank and really miss it, because it's actually a live drink with low shelf life, so it's fairly expensive. You can only buy it in Ukraine, it's refrigerated, I used to get in ATB.