Fermentation as a method of preservation is substantially different than UHT, and you couldn't substitute one for the other without changing the product. Heavy

Fermentation as a method of preservation is substantially different than UHT, and you couldn't substitute one for the other without changing the product. Heavy amounts of nitrates are dubious way of preserving food. But your point is generally correct. For example, shelf stable vegetarian dishes should be nutritionally very close to fresh.