Many people enjoy eating mussels, but they find cleaning them difficult. This is simply because they haven't mastered the technique. This is true for anything; once you know the tricks, you'll find it's not so hard. So, here are the methods for everyone.
1. Use a brush or cloth, such as a toothbrush or a pot scrubber, to vigorously scrub the surface of the mussels to remove most of the seaweed. Use a knife to scrape off any barnacles attached to the surface, then rinse with water. Sand or moss is inedible and should be scraped off. If there are large black spots, check after soaking whether the color changes. If it remains black, try scraping it off to see if it comes off, or scrape it open to check for sand. If it cannot be scraped off or contains sand, it indicates the mussel itself is of poor quality. High-quality mussels, after soaking, should be yellow or light yellow, and the entire body should be free of any discoloration.
2. Next, pull off any moss growing on the mussel meat. Do this slowly by hand, as it may require some force, so be careful.
3. Place the mussels in a basin, add an appropriate amount of water to submerge them all, add a little salt, and let them sit for about an hour to allow them to expel their sand and dirt. You can change the water once or twice during this process.
4. In addition to the cleaning methods above, you can use a small knife or other tool to pry open the two shells of the mussel, as shown below, to directly rinse the meat. This method is suitable if you plan to grill them.
5. There is also a method for cleaning if you only want to keep the meat: place the mussels in boiling water for a few minutes until they all open their shells, then pick out the meat one by one and rinse with clean water. However, this method is only suitable for those who are not particular about the fresh flavor of mussels, as it will cause them to lose their natural sweetness.