That's according to researchers from Oxford University.
Forget what your parents told you - scientists believe chewing with your mouth open makes your food taste better.
Despite the act being considered rude, Oxford University researchers say chewing with the hatch open releases aromas from your meal better.
Meat, food and vegetables all contain compounds like this, with our sense of smell massively contributing to our taste.
Apparently it helps our sense of hearing too, with crunchy foods being rated more pleasurable eaten open mouthed.
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