Does unsalted butter go bad faster than salted?
How long can you keep unsalted butter?
Can I leave butter out overnight to soften?
Does unsalted butter need to be refrigerated?
This rule is simple. If you prefer unsalted butter, refrigerate it. Same goes for whipped butter. If it creeps above 70 degrees Fahrenheit in your kitchen, all butter should go into the fridge to avoid going bad — even into the freezer if you want to store it for a few months.