1, the water should not be too much, in order to not over the razor clams is appropriate, so that it can be convenient for razor clams to spit out the sand in the body.

2, the amount of salt should be appropriate, the purpose of this is to simulate seawater. If you can talk to the person who sells razor clams to point out the ocean effect will be better. If you put less salt, the razor clams will not spit out the sand, and if you put more salt, the razor clams will die quickly, so the amount of salt is very critical.

3, add cooking oil in the water, is to isolate the oxygen, so that the razor clams will spit out sediment faster, but only a few drops can be, so as not to cause razor clams is the lack of oxygen and death.

4, in order to prevent the razor clams will spit out the sediment and then sucked back, so it is necessary to put the razor clams in the middle of the basin placed in the air. You can put the razor clams in a leaky basket with chopsticks underneath. This way the sediment spat out by the razor clams will sink under the water and will not be sucked back by the razor clams.