Can peanut butter go bad in heat?
Consequently, does peanut butter go bad if it gets hot?
Should be fine, especially if it is still sealed. Your only issue is that the heat may cause the oil and the solids to separate. There's no risk at all. There's no meat or whatnot in peanut butter.
Similarly one may ask, how can you tell if peanut butter has gone bad?
Sight is usually the most reliable way to tell if your peanut butter has gone bad. A common trait of bad peanut butter is a change in texture from soft and creamy to hard and dry. The color of the spread may also become darker and the pleasant aroma disappears. If the peanut butter begins to smell rancid, toss it.
Peanut butter The lunchtime sandwich staple seems safe, but its a one of the high-risk foods that cause food poisoning. It can harbor salmonella, which is one of the reasons peanut butter always seems to cause foodborne illnesses.