1. Clean the tomatoes;

2. After the water in the pot is boiled, add the tomatoes and scald them;

3. Remove the tomatoes and peel them after their skins crack. ;

4. Cut the peeled tomatoes into small dices;

5. Put the diced tomatoes into a thick-bottomed pot. After the pot is boiled, turn down the heat and simmer. Simmer until the soup thickens and changes from pink to deep red, stirring constantly to prevent sticking to the pot;

6. Simmer for about thirty minutes until the soup thickens;

7. Pour the cooked tomato sauce into the basin;

8. Clean the glass bottle in advance, put it in the pot and cook it, then drain the water and set aside;

9. Let the cooked tomato sauce dry for a while, then use a funnel to put it into a washed glass bottle while it is hot, and close the bottle cap;

10. Cover the filled tomato sauce with gauze or clean Seal the mouth of the bottle with a piece of cloth and store it in a cool place.