1, one is the wakame is not fresh.

2, is the wakame blanching time is too long, the water boiled for two or three minutes can be removed and cooled. Wakame without blanching will be very fishy. If you eat without blanching, you may have a fishy flavor after entrance. If it is dry wakame, you need to soak it in boiling water beforehand, because it contains a large number of impurities and salts, if you do not soak to remove the clean, the internal impurities will lead to abdominal pain and diarrhea caused by eating; and the salt can not be sufficiently diluted, eating the taste will also be very salty.