Nobody knows exactly when humans began to create fermented beverages.

我们不知道人类第一次制作发酵饮料的确切时间。

Ancient fermented beverages had relatively low alcohol content.

古法发酵饮品的酒精浓度相对较低。

Many people are already enthusiasts of the fermented beverages yeast produce.

许多人已经爱上了由酵母酿造的饮料。

Then they're gonna get a lot of fun facts about the history of fermented beverages.

那他们就会学到很多与发酵饮料历史有关的冷知识。

Capture this vapor, cool it down, and what's left is liquid alcohol much more concentrated than any fermented beverage.

将挥发的气体收集起来，并冷却，便能得到比任何发酵饮料纯度高很多的液体酒精。