5 Uses for Onions that You Need to Know

January 28, 2019

Thought you knew your onions? What if we told you that there are many more layers to this versatile vegetable?

A flavoursome addition to almost every culinary dish, the onion is chock-full of nutrients including potassium, fibre, vitamins B and C.

But wait, there’s more – this veggie also boasts properties that can be put to better use outside of the cooking process.

To find out why so many people find onions appealing, we’ve found five little-known uses for them that you definitely need to know about:

Clean Rusty Knife Blades

Onions contain enzymes known as allianases, which – when it comes into contact with oxygen – becomes sulfenic acid. This helps break down hydroxide ions, which are found in rust.

Slice up and crush an onion, then combine it with water. Afterwards, take a cloth, dip it in the onion solution and continuously rub the metal until the rust disappears.

Absorb Paint Fumes

The smell of onions is enough to make anyone cry, but paint fumes will make anyone bawl their eyes out. Place a bowl of the aforementioned solution in a newly-painted room. This will absorb the paint fumes within a few hours.

Repel Insects and Soothe Bites

Unlike humans, insects aren’t fond of onions due to its sulfur compounds. That’s why rubbing onion slices or juice on your skin make for a great insect repellent. Plus, they also help to ease the pain of insect bites and stings.

Use as a Smelling Salt

Feeling faint? One whiff from a freshly-cut onion will leave you wide awake instantly.

Relieve Sore Throats

Honey tea has got nothing on onion tea! On the stovetop, boil 250ml water with the peels of half an onion peels. Bring to a boil, remove the peels and drink.