Не "хлЭбный" , а "хлЕбный".
Хлебный - сделанный из Хлеба - made by bread
Ядрёный - it's not made by something, it's like " vigorous, healthy, strong, stalwart"
So "Ядрёный' you cen use when you talk about the quality of beverage.
If "Атаман Кваснов" is beverage brend - i'm not familiar with it. I like "Першин" kvas.
Did you try russian kvas?