Whirly hit an aspect of rations that can’t be ignored bringing up butter in hot weather. The durability of your rations and packing are an important consideration. Through the years I’ve destroyed a lot of food items being smashed from falling, miss handling, poor packing, rain, being sat on, etc. I like a few indestructible items like small cans of tuna or sardines to go along. Someone will complain about weight but I’d rather carry an extra 1/2 pound of tin than not eat because all my food was ruined when I fell crossing some little stream or another unforseen accident. Hardly anything is truly waterproof or smash proof and if it is, it has weight.