expression, godan verb (-u)
to be palatable; to suit one's taste
Used for food or drink that agrees with one's palate; often in the negative form 口に合わない to politely decline or express dislike.
この料理は私の口に合わなかった。
This dish didn't suit my taste.
お口に合うかどうか分かりません
I'm not sure if it will suit your taste, but please try some.