History 2185 Lecture Notes - Lecture 6: Frozen Food, Peter Durand, Clarence Birdseye
20 Apr 2016
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Discovered that food can be preserved for a long time as long it is sealed in a jar and boiled for a number of hours. Appert has found a way to freeze the seasons . It was in england where his ways were employed. In britain, peter durand 1810, took out a patent to used metal containers instead of glass containers. These cans were covered with a tin lid. Durand then sold the patent to donkin. No one understood the science behind canning and why/how it preserved food: when heated up, it kills the bacteria. In the beginning tin cans were made from hand; was expensive, and the cans were heavy (weighing 20 30 pounds) Wasn"t until the 1860"s when making tin cans became easier. Another problem with canning, they began to change the taste of the food. Eventually improved the canning of foods and lost its military . People have been doing this for thousands of years.
