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8000 BCE
Early People
They did not have much knowledge on how to preserve food but discovered that smoked meat lasted longer than normal cooked meat -
6500 BCE
Around 6500 BCE
Salt mines were discovered in austria and people found that when added to food (salt) the food could be eaten longer -
800 BCE
800 BCE
Ancient greeks discovered that you could preserve food by using ice or snow. Freezing food slows the growth of bacteria -
1803
about 2600 years after the discovery of freezing food. the found that storage containers also helped prevent the growth of bacteria -
1810
A french chef discovered that by cooking food the immediately placing it in metal cans preserves it for longer periods of time -
1864
Pasteurization a method where you heat food to really high temperatures then u cool it immediately after, killing all the bacteria -
1925
flash freezing food to a really cold temperature to stop the growth of bacteria -
1949
A portable refrigerating unit was made for trucks and cars transporting food -
1969
Freeze drying food so it lasts longer. This started when food started to be transported to the moon/space. -
1990
Irradiation.Foods that are safe do not absorb radiation according to scientists. This method is widely used with strawberries, dried spices and poultry.