A trick I learned many years ago when I was in the scouts. I would take a steak or 2, maybe some hamburger or some stewing beef. I also did the same with bacon or a slice of ham. The meat was frozen in the freezer. Then just before leaving it would be wrapped in foil and a couple of sheets of newspaper. These packets would then be wrapped in spare cloths and stuffed into the middle of the pack. I would also crack some eggs into an ice cube tray and freeze. Then pop the desired number of these egg cubes into a baggie. These would be wrapped the same way as the meat. The foil and the newspaper are for insulation and to keep the clothing clean and dry.

Then for supper the first night, have a steak dinner with a baked potato wrapped in the foil that was around the meat cooked in the coals. Or then again maybe a stew. Depending upon my mood. The next morning, finish thawing the eggs. Then either fry them up or use them to make pancakes or French toast. A small bottle of maple syrup will top the pancakes with some butter. Add a side of ham or bacon starts the day off right. Then for lunch maybe a hamburger or cold snack, depending upon the schedule for the day. The second night there is a steak or stew. Perhaps a hamburger or maybe one of those foil packet meals scouts are noted for. Two days of fresh food before starting in on typical trail fare. Believe it or not the foods handled that way were still cold and often partially frozen for the two days. I never pushed it longer.