they didn't, as they couldn't. To some extent naturally formed ice could be harvested from lakes and rivers and be used for some time as cooling blocks.
no where
yes they are they will eat you and kill you
eggs
so it stays fresh
Clarence Birdseye invented frozen food in New York (USA) in 1949
Foods are fast-frozen through refrigeration.
Frozen carbon dioxide is also known as dry ice. It can be used to keep things (such as perishable foods) cold.
Smith Frozen Foods was created in 1919.
ConAgra bought Banquet Frozen Foods in 1980
ConAgra bought Banquet Frozen Foods in 1980
Freddy's Frozen Custard was created in 2002.
To Keep food cold so it doesn't spoil. Also to keep things that are supposed to be cold cold. Also to keep foods that are supposed to be frozen frozen.
In the event of a power outage, food can remain frozen for several days in an unopened freezer. When the power returns, it is important to inspect the foods for spoilage before eating them.
The first name given to frozen foods was "frozen quick-frozen foods" or simply "quick-frozen foods." This term was used when Clarence Birdseye developed the quick-freezing process in the 1920s, which preserved the taste and texture of food. The concept gained popularity, leading to the eventual branding of frozen foods as a convenient option for consumers.
Foods that are frozen to preserve freshness.
Kellogg also operates Mrs. Smith's Frozen Foods
there are no forzen foods, there are frozen foods, learn to spell