With the invention of tinned goods and pasteurisation in the 19th century, food alchemy became possible on an industrial scale.

随着19世纪罐头和巴氏灭菌法的发明，行业扩大到业规模。

To keep it from spoiling, producers pasteurize it and also remove all the oxygen in a process called deaeration.

为了防止们损坏，制作中会用巴氏法灭菌以及有一个排气的过程来排出所有的氧气。

The roots of today's food industry stretch back to 19th-century innovations such as pasteurisation and canning that helped make food plentiful, convenient and safe.

当今业的根源可以追溯到 19 世纪的创新，例如巴氏灭菌法和罐头加法，这些创新使变得更加丰富、方便和安全。