I want to preserve curry paste in bottles could you please help me to find out the right amount of additives use in it

  • Hello, and welcome to Stack Exchange. The answer is going to be "it depends." What "additives" will you be using? Are you worried about taste or safety? How are the bottles sealed? – Daniel Griscom Sep 13 '16 at 18:27

Rather than changing your recipe by adding preservatives, there a number of approaches you could use, depending on the acidity of your curry paste. At or above 4.6 pH would have to be pressure canned to avoid botulism, as it takes the temperature to 240°F / 116 C (a water bath heats to 212°F / 100 C).

The simplest way is to freeze the paste. Secondly, for an amount you're likely to use over the course of several months, it could be stored in the refrigerator. Heat the paste with a bit of oil and of water. Completely fill sterilized jars with the hot paste, close, and turn them upside down to cool completely before refrigerating.

If it is high acid, it can be water-bath canned: fill sterilized jars with the paste, top with sterilized lids and bands, and process the jars in boiling water. After cooling, check to ensure the lid is sealed; if not, it can be re-processed.

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    And the paste's pH is most likely well above 4.6 - you need reasonably acidic fruit or vinegar to get a low enough pH to avoid the need for pressure canning. – Cascabel Sep 13 '16 at 15:44
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    this is a very common question type, turning up for all manner of homemade condiments (hot sauce, etc.) and the answer is always the same. Don't we have a canonical question? If not, we should make one. – rumtscho Sep 13 '16 at 15:47

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