Modern experiments in creating bog butter yield a product that seems to be an acquired taste, with "flavor notes which were described primarily as ‘animal’ or ‘gamey’, ‘moss’, ‘funky’, ‘pungent’, and ‘salami’.
Peat bogs, being low temperature, low oxygen, highly acidic environments, have excellent preservative properties. Experiments conducted by researcher Daniel C. Fisher demonstrated that pathogen and bacterial counts of meat buried in peat bogs for up to two years were comparable to levels found in control samples stored in a modern freezer,[9] suggesting that this could be an effective preservation method.
I've always thought we could improve the performance of refrigerators / freezers by replacing the air with a inert non-reactive gas like nitrogen. Food in a cool nitrogen environment will not oxidize, because there is no oxygen! This could be done with a top down cooler (where the lid is on top), just fill with nitrogen.
Nitrogen is denser then air, so you can have a float indicator at the rim of the unit, if the nitrogen dips to low you pump in more until the float... floats. All mechanical, no electronics needed!