How Long Does Buttercream Last

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When you decide to store it in the fridge (high-five, you responsible human), buttercream lasts a solid 1 to 2 weeks. That’s long enough to forget about it, rediscover it while cleaning, and still use it on a batch of cupcakes. The fridge slows down the dairy bacteria party, so your frosting stays safe and tasty.

But here’s the kicker: fridge-cold buttercream is a brick. It will be as hard as a hockey puck and impossible to spread. Don’t panic—just let it come to room temperature for an hour or two, then give it a good whip with a mixer. That’s like giving it a pep talk before a big game. It will fluff right back up, creamy and dreamy as ever.

A quick anecdote: I once found a container of buttercream in my fridge that was two weeks old. I sniffed it, hesitated, and then whipped it with a splash of milk. It tasted like a champion. My husband didn’t even notice it was “old.” The moral? The fridge is your friend, just not your forever friend.