Imagine you’re making a BLT on a Tuesday night. You whip up a fresh batch of mayo, slather it on toast, and life is good. That jar’s clock starts ticking the moment the egg yolk hits the bowl. Day one is your golden hour. By day five, it’s still fantastic, but you’re living on borrowed time. By day eight? You’re playing a dangerous game of mayo roulette.
Think of it like a ripe avocado. You don’t eat it when it’s brown and mushy, right? Same logic here. Your mayo won’t scream “I’m bad!”—it’ll just slowly change. The smell, the texture, the tiny bit of separation—those are clues. But the real trick is not waiting for clues. Mark your jar with a date sticker or a piece of tape. It takes five seconds and saves you from a stomach ache.
Your fridge is your mayo’s best friend, but it has to be a good friend. Keep your mayo near the back, where it’s coldest, not in the door where temperatures swing every time someone grabs a soda. Treat that jar like a VIP in a nightclub—cool, dark, stable. No door-dancing for your precious emulsion.
What About That “Slightly Off” Smell?
We’ve all done it. We open the jar, take a sniff, and think, Hmm, maybe it’s just the garlic? Be honest with yourself. If your nose says “no,” listen to it. Trust your senses—they’re the oldest food safety system in the world. A fresh batch should smell bright, tangy, and clean, not musty or like old socks. One bad sniff isn’t worth the risk of a rough night.
how long does homemade mayonnaise last in the fridge? - Test Food Kitchen
Here’s a little story: I once made a double batch for a summer picnic. I was so proud, I used it on everything. By day six, I made a tuna salad, took a bite, and thought, “Huh, that’s… different.” I threw the jar away immediately. Was it bad? Probably not yet. But my gut said “nope,” and my gut has never lied about mayo. Never gamble with homemade eggs and oil. Your gut is smarter than you think.
The good news? Homemade mayo is so easy and cheap to make that one week is plenty of time to use it up. Slather it on sandwiches, mix it into potato salad, dip your fries, or make a quick aioli with some herbs. Plan your week around your mayo. It’s a delicious little deadline that forces you to get creative.
