The avocado (officially named Persea americana) is a tree native to Mexico and Central America. Avocados are commercially valuable and are cultivated in tropical and Mediterranean climates throughout the world. They have a green-skinned, fleshy body that may be pear-shaped, egg-shaped, or spherical. Avocados are packed with healthy fats and potassium — but who hasn’t put an unused avocado half in the fridge, only to find the fruit turned a totally unappetizing brown the next day? It’s one of the most frustrating things about loading up on avocados—but luckily, there’s an easy solution. So, how to keep avocados fresh, then? Let’s find out, as there seems to be a quite effective tip that works just fine…
To keep avocados fresh, simply cut a red onion into fairly large chunks, throw the pieces an airtight plastic container, and place the avocado half — with the pit — on top. The skin should be touching the onion chunks. Put the lid on the plastic container, place it in the fridge, and brown avocadoes will be just a memory.
So, how does this amazing trick work? The onion emits sulfur gases, which help stop the oxidation process that turns avocados brown. As simple as that. Now you have no reason not to start making avocado salads or avocado smoothies.