|Prevent water from boiling|
All you need is a wooden spoon. Simply place it across the top of the pot as the water is boiling and wa-la...it will stop the water from boiling over the pot while you're cooking.
Check out this picture you can see how the bubbles are being broken up by the spoon but they won't go over it.
Also, I should note, by using a wooden spoon, it doesn't get hot!
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