That dog food cooker has a lot of resemblance to the venerable Trangia stoves that have been used in winter, on mountain tops and all sorts of extreme places. Although the burner is simpler, the pot is completely shielded from the wind and the burner is decoupled from the pot. That is, the burner is neither heated nor cooled by the pot.
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If I wouldn't eat it at home, why would I want to eat it on the trail?