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點評
點解我果D上層全部是油。點算?
Do you think you need to dilute it up 10-20 times before use?
你果D重有冇油呀?
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點評
actually, sugar has two properties in this mixture, 1. act as a starter and accelerate the fermentation, 2. sugar is carbon base, so, it is used for fixing the nitrogen, that means to keep the N
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