If you use "natural" or "organic" peanut butter (read, ingredients: peanuts) you'll want to refrigerate it. It helps keep the oil from separating. It'll be the consistency of jiff or other sugared brands for most of the jar. I usually take mine out of the fridge when you get towards the bottom so it doesn't get too hard.
Yeah I've primarily had JIF creamy peanut butter... no reason in the world why my mother needed to put it into the fridge. I would have to take it out the fridge and wait a few hours before using it.
If it's the more natural kind it can go rancid if you don't eat it fairly quickly. If it's peanut butter flavored frosting like Jiff then it doesn't matter really
The original patent for peanut butter (literally called peanut-candy) specified the peanut paste is mixed with sugar. So Jif is legitimate peanut butter even though you want to be snarky about its sugar content.
Really? Huh. I get natural too and I feel like it stays good for a couple weeks, but gets a kinda weird bitterness after that. Kinda like celery but less dramatic. It's definitely still edible either way though.
I have peanut butter in the fridge. I hate PB and it's only used for my dogs kong. Fridge firms it up and keeps the oil from separating. Much easier to work with than when it's room temp and runny.
A bit, I suppose. I much prefer not contributing to Bornean deforestation by buying products free of palm oil whenever possible over having peanut butter that doesn't get a bit runny. Also I prefer the peanutty taste.
I grew up with PB in the cupboard. *Never *had a problem with it. My wife on the other hand, PB goes in the fridge. She swears it tastes bad if it's not kept in the fridge. Other than taking up more space, I'm not going to argue with the person that is most likely to eat the stuff.