Quick Answer
If your water bath canner starts boiling dry, turn off the heat source and let it cool before attempting to refill. Avoid sudden water additions, as this can cause the water to splash and contaminate the canner. Refill the canner with enough water to cover the jars by at least an inch.
Identify and Address the Cause
To prevent boiling dry in the first place, ensure your canner is filled with enough water to cover the jars by at least an inch. A general rule of thumb is to use at least 4-6 quarts of water for every 7-8 pounds of fruit or vegetables being canned. Check your canner’s water level regularly, especially during the initial boiling phase.
Refilling the Canner
When refilling the canner, turn off the heat source and carefully pour in the new water, avoiding sudden splashes. If the canner has cooled significantly, you may need to reheat it before starting the canning process again. A temperature of 180-190°F (82-88°C) is ideal for the canning process.
Additional Precautions
In addition to refilling the canner, inspect your equipment and recipe for any potential issues that may have contributed to the boiling dry. Check the canner’s heat distribution, the size of your jars, and the acidity level of your fruit or vegetables. By taking these precautions, you can minimize the risk of boiling dry and ensure a successful canning experience.
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