If you're always left with half an onion to put back into the , it can be a nightmare to deal with the smell until you use it up.

This simple kitchen item will be life-changing for your leftover .

Buying an "onion saver" will mean you can fit the chopped item into a sealed container.

Available on Amazon for just £4.99, the item will work much better than a piece of clingfilm or some tinfoil which the smell can escape from.

Out of 610 ratings, the product is rated 4.4 stars out of 5. The item will also keep your fresh until you want to use the rest of it.

One reviewer wrote: "Does exactly as it should. Keeps onions fresh with no smell leaking out into the fridge. Highly recommend."

If you want to try another nifty device, there is also the option to buy a stretchy cover purpose-built for saving vegetables.

For just £13.99, you can purchase a pack of silicone storage containers which are each designed with a certain item in mind.

The set comes with a storage cover for an onion, an avocado, a tomato and a lemon.

Once stretched tightly over the leftover , the item will stay fresh and will be smell-free in your fridge.

According to , chopped onions can last in the fridge for up to from seven to 10 days if stored properly.

While this is the standard guideline, many factors can affect the shelf life of chopped onions, including the freshness of the onions before they were chopped, the storage container used, and the temperature of your fridge.

If you can't use them in time, there's always the option to chop and freeze the rest of the onion which you can then save for around six months, says Chef's Resource.

Keep in mind that could lose flavor once cut because they are exposed to air (oxidation).

Proper storage of maintains freshness and flavor longer, and also makes them really easy to eat as snacks or use in recipes.