Kitchen Tips

You wrap the leftover onion in plastic wrap, put it in the fridge, and by morning the whole thing smells like a deli counter. This guide covers 4 storage methods tested, the science behind why most of them fail, a step-by-step method that keeps cut onion fresh for up to 10 days, and how to tell when to throw it out.

Cut avocado turning brown? We tested 5 storage methods so you don't have to. See real results, timelines, and the one tool that keeps avocado fresh up to 48 hours.