The preservation time of chili sauce is closely related to the method of making the sauce, the storage environment and other factors, in general:

1. low-temperature preservation: put the chili sauce in the refrigerator to extend the preservation time.

2. Sterilization preservation: fill the sealed bottle with chili sauce, put it into boiling water for 5-10 minutes, cook it and then fish it out to cool, the preservation period can be up to more than 1 year.

3. Add vinegar preservation: mix the chili sauce with the right amount of vinegar, you can extend the shelf life.

Generally, homemade chili sauce should be stored in the refrigerator for up to 2 months, and try to avoid exposure to air after opening. It should be discarded immediately if it develops an odor, mold, or other abnormal conditions to prevent food poisoning.