[其它] 如何說服長輩咖啡粉不要重複沖
大家安安，
最近將一些單品咖啡豆和家人分享
但是長輩節儉，又或許是泡茶的習慣
每次都將咖啡渣重複沖個2~3次(手沖)
雖然我說口感不佳，但他們卻覺得喝起來有味道就好......
請問這種過度萃取的汁液對於健康會有影響嗎?
或是任他們高興就好呢QQ
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