I’ve always thrown away the oil cap – a colleague explained to me what it was actually used for

Use the cap as a dispenser
Once you have put the cap upside down, you will notice that it works as a kind of dispenser or restrictor. This will allow you to pour the oil in a more controlled way, preventing excess oil from coming out and being wasted. This method is ideal for when you need to add small amounts of oil to your dishes.

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