It’s a scenario we’ve seen too many times: You’re hosting a family barbecue and Aunt Doreen brings her famous potato salad. It’s creamy, dreamy and everything you want to pair with a hot dog, so of course you’re eyeing up a second helping…until you realize the bowl has been skulking around at the end of the table, sun beating directly onto those mayonnaise-dressed spuds, all afternoon.
So how long can mayo sit out, really? As it turns out, the life of this condiment is severely shortened by summer temps. According to the USDA, you have a measly two hours to party with that mayonnaise-based salad, but it’s a *little* more complicated than that. Here’s the sitch.