111 I’ve always thrown away the oil cap: a colleague explained to me what it was really for.

This space allows you to measure the oil, which will then pour in a thin stream.

If you often cook with bottled oil, you’ll have noticed a plastic ring under the cap. While you might think it’s best to throw it away, discover its usefulness in this article.

You’ve probably noticed those little plastic tabs on oil bottles more than once. Perhaps you’ve even ignored them, thinking they served no purpose other than to make it harder to open the bottle. Well, think again! These tabs have a very specific purpose and can make your life in the kitchen easier. So, before throwing them away, find out why they’re worth saving.

A tab with a dual purpose
The tab plays an important role in preserving oil. It acts as an airtight seal, preventing air from entering the bottle. Air can be harmful to oil because it can accelerate oxidation and alter its flavor. It ensures better preservation of the oil and extends its shelf life.

Controlling the amount of oil used
When preparing a recipe that only calls for a small amount of oil, it’s sometimes difficult to control how much comes out of the bottle. As a result, we always end up using more than necessary. But thanks to the plastic tab located inside the bottle, under the cap, this problem is quickly solved.

The small ring actually partially obstructs the spout of the bottle, making it easier to control the amount of oil poured. This way, you can pour the liquid without wasting a single drop. Really convenient, right?

However, be careful not to press the tab too hard, or you might push it even deeper into the bottle. Press it gently and lightly.

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