what's the difference between "how's the food?" and" how do you like the food?
how's this room?
how do you like this room?

but : how's your head? and we can't say : how do you like the head?!! :))

Question

what's the difference between "how's the food?" and" how do you like the food?
how's this room?
how do you like this room?

but : how's your head?   and we can't say : how do you like the head?!! :))

Answer

I agree with Angie, and also how’s the food is more informal and how do you like the food is more formal.

Answer

“How’s the food?” is more general and less personal.
How’s the food at the new seafood restaurant?
Personally I don’t like seafood but people who do say it’s really good.

Answer

thank you very much

Answer

Hi Amirhossein. 
Honestly I think there is only a small difference.
I would say that for question
How's the food? Answer is good or bad etc
How do you like the food? Answer is: I like or I don't like.
Hope it helps
Agnie

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