Preserving food has not always been easy.
Centuries ago,people gathered ice from streams
and ponds and did their best to store it year-round
in icehouses and cellars,so they had a ready supply
to keep their food cold,Even with ice people were
often limited to eating locally grown foods that had
to be purchased fresh and used daily.
The Egyptians,Chinese and Indians were some of the
early people to use ice in food preservation.
In 1626, Sir Francis Bacon was also testing the idea
that cold could be used to preserve meat; his chilly
experiment caused him to develop pneumonia,
from which he died on Easter Day, April 9, 1626
保存食物并不总是那么容易。
几个世纪以前，人们从溪流收集冰
和池塘，并尽最大努力，以存储它全年
在冰库和地窖里，所以他们有现成的供应
为了保持食物的低温，即使是在有冰的情况下
通常只能吃当地出产的食物
新鲜购买，每天使用。
埃及人、中国人和印度人就是其中的一些
早期人们用冰来保存食物。
1626年，弗朗西斯·培根爵士也在试验这个想法
这种冷可以用来保存肉;他的冷
实验使他患上了肺炎，
他死于1626年4月9日复活节