Is it impolite to ask for less of something?

Hi all. My coworker makes his own wine. I'm 6 weeks pregnant. You can see where this is going. He asked me if I wanted to try his new wine. I said "sure! Husband and I will try it" as to not tip him off and I figured hubby would drink it. Now he wants to bring us 3 oversized bottles! Obviously this is... show more Hi all. My coworker makes his own wine. I'm 6 weeks pregnant. You can see where this is going. He asked me if I wanted to try his new wine. I said "sure! Husband and I will try it" as to not tip him off and I figured hubby would drink it. Now he wants to bring us 3 oversized bottles! Obviously this is way too much. Should I say you are too kind but just 12oz is plenty, or just say thank you and we'll take the bottles? I don't want his hard work to go to waste bc my husband won't drink it all, but I don't want to appear rude either. Thanks for your advice.
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