Chest freezers were often kept in garages and other cold places and worked efficiently (and economically) by not having to fight central heating temperatures. I have read your column for years, and been impressed with the clear explanations you normally provide.
Amino acids are found in animal sources such as meats, milk, fish, and eggs. They are also found in plant sources such as soy, beans, legumes, nut butters, and some grains (such as wheat germ and quinoa). You do not need to eat animal products to get all the protein you need in your diet.
The belief that you have to eat meat to get adequate protein is a myth. No basis in fact at all. Many foods that are not flesh have plenty of high-quality protein. The big mistake a lot of people make that decide to try out a vegan or vegetarian diet is just eliminating meat.