MRE's are fine for most folks. I only found one variety that I really didn't care for. I suppose it is like anything else. Even the finest french cuisine doesn't site well on everyone's pallatte, and having the same food day after day will wear on anyone, regardless the quality or quantity.
I know people have long grown weary of me lauding the wonders of pemmican, but as long as people keep bringing this issue up, I will keep mentioning how wonderful a survival food it is, and how versatile. It is infinite in variety, both in recipe as well as preparation. It is durable, it is efficient, and it is proven. It was a survival staple for hundreds of years, long before modern processing methods made more perishable foods last long enough to be useful. It is economical and convenient, and straightforward.
It may not be pallatable by some (as if pallatability were an important criteria for a survival ration), but it works, and if it was good enough for millions of our ancestors, then why change what works?
Considering all the characteristics that make it so uniquely functional, there really is nothing else that even comes close. Categorically it can't be improved on.
The injuns got it right. Anything else is too civilized.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)