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Hello, I'm Hong Yo-jeong, a florist! I learned about flower food, a cut flower preservation agent! In any case, the best thing is to clean it frequently so that there is no shortage of water to prevent the growth of microorganisms, right?! KakaoTalk Plus Friend http://pf.kakao.com/_xjECAj Naver Blog: https://blog.naver.com/hongyojung Instagram: / hongyojung