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160
Keeping Ice Longer
Hebrews, Greeks, and Romans placed large amounts of snow into storage pits dug into the ground and insulated with wood and straw -
200
Greeks and Romans use a salt cure
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Period: 200 to
Meat Preservation
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Jan 1, 1550
Using Chemicals to Cool
The intermediate stage in the history of cooling foods was to add chemicals like sodium nitrate or potassium nitrate to water causing the temperature to fall. Cooling wine via this method was recorded in 1550, as were the words "to refrigerate”. -
Mechanical Refrigeration
In the 1800’s mechanical refrigeration was invented and was quickly put to use. -
Curing Meats
Discoved it gave meat a red color rather than grey -
Cooling system with Vapors instead of liquid
In 1805, an American inventor, Oliver Evans, designed the first refrigeration machine that used vapor instead of liquid. -
Artificial Additives added
In 1856, William Henry Perkin discovered the first synthetic organic dye, called mauve -
Drying Goods
Ancient Times, Eastern and Oriental folks dried their meat using the sun. THey aslo dried fruit and veggies, The romans were fond of driend fruits. -
Ice was gathered and stored for preservation
Ancient times and Chinese used Ice -
Pickling
Developed 4000 years ago in what is today's india