How to Make Tomato Ketchup


4 L tomato pulp
4 cups sugar
½ tsp cinnamon powder
½ tsp pepper powder
½ tsp cloves powder
½ tsp paprika
½ cup fresh onions
2 cups vinegar (4.5% acidity)
2 tsp sodium benzoate (optional)
3 tbsp cornstarch dissolved in 1 cup water


stainless/enameled kettle
measuring cups and spoons
chopping board
strainer, stainless
wooden ladle
casserole, stainless
bowlblender (optional)

Packaging material:

sterilized glass jars with new caps


1. Select and wash ripe fleshy red tomatoes.
2. Blanch tomatoes for 30 seconds, transfer into cold water, peel and cut into halves (crosswise).
3. Remove the seeds and chop the pulp into small pieces. Strain the remaining seeds thru a fine mesh screen.
4. Mix the juice with the pulp.
5. To every 4 liters of pulp, add the above ingredients (except for vinegar and sodium benzoate) and blend.
6. Place the mixture into a kettle and cook over low flame, stirring constantly to avoid scorching, until the right consistency for catsup is reached. Add vinegar and sodium benzoate (optional) until nearly cooked. Add cornstarch previously dissolved in water.
7. Pour while hot in sterilized bottles.
8. Seal and cool. Label.

Here is a video guide:

Source: DOST, picture


  1. was it possible for me to use a recycled bottles of catsup as long as im goin' to sterile it? and where to buy a new caps for those types of glasses?

  2. was it possible for me to use recycled bottle of catsup as long as im goin' to sterile it?and where can i buy a new caps to cover up those bottle types?thanx

  3. of course you can use the bottles if they are not damaged, and are sterilized. As for the sealing caps, you can ask DOST for sources or DTI.

  4. hi good day,after doing this procedure on how to make a tomato catsup,just wanna ask if how long would it last before the catsup will gonna expire?thank you

  5. if you have put 2 tsp sodium benzoate (optional) it could last to its expiration, you have to keeping the bottled catsup and checking them weekly, and until it got spoiled so you would know how long your catsup/process would last as expiration would depend on many factors like hygiene,preservatives such as sodium benzoate, materials you used etc.

    you better visit DOST and ask for help to prolong the shelf life of the catsup you have made..they would know what to do..


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