[progbits]

I've been buying 100% peanut butter for years, never stored it in a fridge and never had it go bad. Maybe your room temperature is higher? It's strange as with a single ingredient product I would expect we would have the same results...

The separation and mixing is a pain though. Love the mixer idea!

[majikandy]

Same here. Never even thought of the fridge or what cold peanut butter would be like. I just can’t imagine it and have never needed to. Weird. In other contexts too I’ve never experienced it. Work breakfasts, hotels, I really can’t ever recall fridge temperature peanut butter. Not to mention the size pots we buy would be annoying.

[JohnFen]

Same here. I don't even go through it that fast -- it takes me three months or so to get through a jar.

Refrigerated peanut butter sounds like an unnecessary hardship.

[maxbond]

I would guess it's more to do with humidity than temperature. A drier climate should inhibit rancidification. A wetter one should accelerate it.