1. Shredded kelp generally needs to be cooked in boiling water for about 8 to 10 minutes. If it is shredded kelp that has been soaked in water, it will take about 5 minutes to be cooked. When cooking kelp, you can use chopsticks to pick up one kelp and pinch it hard. If it is soft, it means it is cooked and can be removed from the pot.

2. The time for cooking kelp shreds should not be too long or too short. If the time is too short, it may be undercooked. If the time is too long, the kelp shreds will easily become hard and affect the taste.

3. Before cooking kelp shreds, you can soak and wash them in rice water. Add a little baking soda during the cooking process to make the cooked kelp shreds softer and more delicious.

4. Some nutrients in kelp silk will dissolve in water. If the soaking time is too long, the nutritional value will be reduced. If the kelp has no toughness after being soaked in water, it means that it has been boiled. It has gone bad and cannot be eaten anymore.