前回、醗酵させた皮の中に 何カ所か青皮の色が抜けてたけど、
この実験では、水につけて陽にさらしてるだけで、青皮が消えた。

While the last experiment, I found some parts of the green layer of the bark were breached. This time, green layer disappeared while the barks were soaked and left in the sun.