A cut onion in the fridge can last between 7 to 10 days, depending on how fresh it was. That’s way better than the 12-hour window it has on the counter, where it gets soft and weepy.
Refrigerating Cut Onions: Optimal Storage Time And Tips | CyCookery
But here’s the fun part: it’s not just about time. The type of onion matters. Red onions are like the tough athletes of the onion world—they stay firm longer. Sweet onions? They’re like fragile little divas that get mushy faster, so use them up quick.
If you notice a slimy film or a weird smell (beyond the normal onion punch), toss it. Your nose knows, and it’s better to be safe than to cry over spoiled salad fixings.
The Great Debate: Cut Side Down Or Up?
You might have heard people argue about this. Some say put the cut side down on a plate to keep it moist. Others say cut side up to let it “breathe.” Honestly? It’s mostly a myth.
The cut side down trick can help keep the onion from drying out too fast. But it also traps moisture, which can make the cut surface go soft and weird. So it’s a trade-off.
My advice? Wrap it and don’t overthink it. The fridge is already doing the heavy lifting, like a chill assistant manager. Let it do its job.
