| Do
you know? There
are several different types of space foods used
on the Space Shuttle.
Rehydratable:
Water is removed from these foods by freeze-drying
them. They are lightweight and easy to store.
Water is then replaced in the foods before they
are eaten. Examples are: Beverages, cereals,
scrambled eggs, shrimp cocktail, macaroni and
cheese, and many other menu items.
Thermostabilized:
Foods that are heat processed so they can be
stored at room temperature. Examples: Fruits
and tuna fish packed in cans or puddings packed
in plastic cups like those you buy at the grocery
store.
Intermediate
Moisture: Foods preserved by taking some
water out of the product while leaving enough
to maintain a soft texture. They can be eaten
without any preparation. Examples: Dried peaches,
pears, apricots, and beef jerky.
Natural
Form: These foods are ready to eat and
are packaged in flexible pouches. Examples:
Nuts, granola bars, cookies.
Irradiated:
Products that are cooked and packaged in flexible
foil pouches and sterilized by ionizing radiation
so they can be kept at room temperature. Examples:
Beef steak and turkey.
Fresh:
These foods are neither processed nor artificially
preserved. They are normally eaten fairly quickly
so that they do not spoil during a space mission.
Examples: Tomatoes, oranges, apples, bread.
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