After thawing, use steel wire ball to deal with: put the frozen sea cucumber in cold water for 5~10 minutes, quickly dissolve the ice coating on the surface, then grab the tail part of the fish and use the steel wire ball to scrape from the tail part of the fish, it can quickly remove the scales, and need to be washed again and again after removing the scales.
After thawing, use boiling water to scald and then pull off the fish scales: put the frozen sea cucumber grouper in 70 degrees Celsius hot water to rinse, hot water can easily remove the fish scales after scalded, after the temperature is gradually lowered, you can use your hands to gently pull off the scales, and after pulling off the fish scales, you need to put it into the cool water to wash it, you can remove the residual fish scales.