Such a strong fishy taste Even with the non-fish bit?

这么浓的腥味 即使是非鱼腥味？

The water used has little to no iron in it because that gives an undesirable taste to the sake and iron also tends to amplify the fishy taste in seafood so you can end up with a fairly unpleasant aftertaste.

酿酒所使用的水中几乎没有铁，因为铁会给清酒带来不理想的味道，而且铁还容易放大海鲜的腥味，那么最后你会有相当不愉快的回味。