My roommate insists on leaving the butter on the counter because ‘that’s how they’ve always done it.’ But is it actually safe to let butter sit out? I refuse to use it and she gets quite upset about that.

Is It Safe to Leave

 Butter Out? Here’s What You Should Know 🧈🤔

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Your roommate swears by room-temperature

 butter, but you can’t shake the feeling that it’s a food safety risk. So who’s right? Let’s settle the great butter debate once and for all.

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We’ve all been there — standing in the kitchen, eyeing that dish of butter sitting proudly on the counter and wondering if it’s still safe to eat. Some people insist that butter belongs at room temperature, soft and spreadable. Others cringe at the idea, convinced it’s a fast track to spoiled dairy.

If your roommate insists that “we’ve always done it this way,” and you’d rather not risk it, here’s the science-backed truth about storing butter safely.

🧈 The Science Behind Butter Safety

The good news? Butter can safely sit out at room temperature — within reason.

Butter is made primarily of fat, with only a small amount of water and

 milk solids. That high fat content and low moisture make it an unfriendly environment for bacteria, unlike milk or cream. The salt in salted butter adds an extra layer of protection by inhibiting bacterial growth.

So yes — leaving butter on the counter is generally safe for a short period, especially if it’s salted and your kitchen stays cool (below 70°F or 21°C).

🚫 When It’s Not Safe