Do you simmer pasta sauce with lid on or off?

Chef's answer
Simmering is less than a boil and for sauce its a effective way to slowly reduce it and bring out the flavor. When simmering you want to avoid too much heat. Leaving the lid on will also trap heat, causing the simmer to turn to a harder boil. That is another reason to leave your lid off while simmering.
Frequently asked Questions 🎓
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