Because you can keep different types of food in a crock, they have different names. For example, keeping cabbage in a crock makes it into Saar Kraut. The process is called pickling, so a lot of the time you just add "pickled" in front of the normal vegetable name. Ex: pickled beets, pickled fiddle heads, etc.
A crock can be kept in a freezer without any problem, if that's what you are wondering.
To make pickles you wash small pickling type cucumbers, slice them in spears, planks, or rings then place in a food safe container (crock, large bowl, or food safe cooler), add pickling salt and water for a period of time specified by the recipe. When cucumbers are kept in this brine they need to be kept cold either in the refrigerator or by adding ice to the crock or cooler.
Potential
what is the place where food is kept
After Napoleon's men uncovered the Rosetta Stone, the Stone was shipped to Europe and (obviously) kept there.
life
it is where all the supplies are kept
At the british museum.
The food is kept in special frozen areas. This helps keeping the food from withering.
The original Commandments - carved onto tablets of stone - were kept in the Ark of the Covenant.
fridge!
She kept her last name after marriage.