Most foods are processed, whether it is by freezing, grinding, fermentation, pasteurization or other means.

大多数食品都经过加工，无论是通过冷冻、研磨、发酵、灭菌还是其他方式。

That's milk which has not undergone pasteurization, the century-old process of using heat to kill potentially harmful bacteria.

生鲜奶是未经杀菌处理过的牛奶。而杀菌是一种有年历史利用高温将潜在有害细菌杀灭的工艺。

There was a whole subculture of pasteurization activists back then.

当时存在杀菌活动家的整个亚文化。

He can't handle the heat of pasteurization.

他经不杀菌的高温处理。

Another version, called ultra-high temperature processing, or ultra pasteurization, blasts the milk with considerably higher temperatures over just a few seconds.

另一种称为超高温处理或超杀菌的版本在短短几秒钟内用相当高的温度对牛奶进行喷射。

This led to the invention of pasteurization, as you all know from your middle school science classes, but it also led to an understanding that fermentation was a biological process involving living organisms.

这导致了杀菌法的发明，正如你们在中学科学课上所知道的，但它也让人们得以理解发酵是一个涉及到生命有机体的生物过程。

Raw milk can carry microbes that are the sources of deadly diseases, so in order to kill as many of those microbes as possible, and keep milk fresh longer, we use a technique called pasteurization.

生牛奶可能携带致命疾病的来源微生物，因此为了尽可能多地杀死这些微生物，并使牛奶保鲜时间更长，我们使用了一种称为杀菌的技术。

We heat it up to pasteurization temperature, cool it back down in a vat, add the culture, and pump it over to our filling machine, and then the containers go on rolling racks into the worm room, the incubation room.

我们将牛奶加热至杀菌温度，然后在槽中冷却， 加入培养物，并泵送到我们的灌装机，接着容器被放置在滚动的架子上进入蠕虫室，即孵化室。