Material preparation: glass bowl, flour, white vinegar, salt, 30-degree warm water, spoon and clear water.
Step 1: Pour a spoonful of flour into a glass bowl (flour can adsorb the dust on tremella).
Step 2: Then pour a proper amount of salt into the glass bowl (salt has bactericidal effect).
Step 3: Then pour a proper amount of white vinegar into the glass bowl (white vinegar can remove the odor).
Step 4: Pour a proper amount of 30-degree warm water into the glass bowl (30-degree warm water can just soak the tremella).
Step 5: Soak the tremella in a bowl.
Step 6: soak the tremella for five minutes.
Step 7: Then clean the tremella with clear water.
Step 8: Tremella has been soaked and washed.