［突破5萬播放！］因為在台灣買納豆很貴！用保溫袋來自己做納豆不難！

How to make natto at home. ( Chinese version) You can do it with insulated bags and warm bags! Make your own natto, and the taste of beans is very strong. It's very delicious! In fact, the focus of making natto is humidity and air. So it's very suitable to make natto in Taiwan! #Natto #Muscle Increase muscle #Prevent aging #Japan #Taiwan Learn Chinese #Learn Chinese #Natto production #Warm bag #Insulated bag #Vegan #Health