Now, if you're not planning on using that onion anytime soon, it's probably a good idea to chill it out in the fridge - get it, chill? By refrigerating your cut onion, you'll not only reduce the risk of it turning into a mushy, brown mess, but you'll also preserve its flavor and texture. And let's be real, there's nothing worse than a sad, soggy onion ruining an otherwise perfect dish.
But, as with all things in life, there are some caveats to consider - like the fact that refrigerating an onion can actually make it stronger, in terms of its pungent flavor and aroma. So, if you're planning on using that onion in a delicate dish, you might want to think twice before refrigerating it. On the other hand, if you're making a hearty stew or soup, a stronger onion flavor might be just what you need to take it to the next level.
And then, of course, there's the myth-busting aspect of onion refrigeration - like the idea that you should never store onions near potatoes because they'll make each other sprout or something. Turns out, this is just an old wives' tale with no basis in fact - but hey, it's still a fun story to tell at dinner parties. The real reason you shouldn't store onions near potatoes is that they can absorb each other's moisture, leading to a sad, moldy mess.
Refrigerating Diced Onions: Tips For Freshness And Safe Storage | CyCookery