kvass

1.The specialty of kvass drinking was introduced briefly. At the same time, we studied especially on the techniques of bread kvass, corn kvass and bean kvass.

介绍瓦斯饮料的特点,以及以一些常见食品为原料制作瓦斯饮料的方法,重点介绍面包瓦斯、玉米面瓦斯和豆奶瓦斯的制作方法。