1. The clams are kept in salt water for one or two days and let them spit clean sand
2. Soak soy beans with water
3. Scrub clams clean
4. Slice ginger, boil it with soybeans and water. Cook the soybeans until they are cooked through
5. When the soybeans are cooked and cooked thoroughly, add the clams
6. Then add the diced tofu
7. Bring to a boil, skim off the foam, continue to cook for 8-10 minutes
8. After turning off the heat, add sesame oil and salt to taste
9. Delicious clear soup
