Is processing time different for different size jars?

Processing time for 4 ounce jars (1/2 cup), 8 ounce jars (1 cup or 1/2 pint) up to and including 16 ounce jars (2 cups or 1 pint) is 10 minutes at sea level.

For Altitude For All Jar Sizes: Add 1 minute for every 1,000 ft above sea level. For example, if you are between 1,000 and 2,000 ft, boil for 11 minutes; 2,000 to 3,000 ft, boil for 12 minutes, and so on. If you don’t know your elevation, you can find it by putting in your address or your city name at this website.

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Posted in: 6. Questions About Jam-Making Equipment and Water Bath Canning

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