Kagami純米大吟醸
ぎゃばん
☆☆☆☆☆
I think it's a bit bitter rather than sour and not melon-like, probably because it was just opened.
The aroma is mellow and delicious.
After a little while, the bitterness fades and the sweetness and sourness come through. However, I think I will finish it while the bitterness is still there. It tastes better after a little while than right after opening the bottle.
Japanese>English