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Toyobai 678 yeast drink comparison
6: Sourness with a bit of bitterness and sweetness in the back. It also has umami, so it may be well-balanced.
7: Slightly more refreshing than 6, with a stronger bitterness, but overall, very clean.
8: It reminds me of a slightly sweet and sour type. The aftertaste disappears quickly, so it seems a bit bland.
You can tell the difference when you compare them like this, but you might not be able to tell the difference if you drink them normally.
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