Canning and Preserving All-In-One for Dummies by Consumer Dummies

Author:Consumer Dummies [Dummies, Consumer]
Language: eng
Format: epub, mobi
ISBN: 9781118034194
Publisher: For Dummies
Published: 2011-10-11T05:00:00+00:00

Figure 1-5: A vent tube.

To work properly, the vent tube opening cannot be obstructed with food or other matter. Obstructions restrict the optimum pressure and temperature required for your recipe. To check the vent for obstructions, hold it up to the light. If the vent appears to be clogged, insert a piece of wire (or other item suggested in your owner’s manual) into the tube. Rinse the vent with hot water. Repeat the procedure if you still see an obstruction.

Overpressure plug

An overpressure plug (see Figure 1-6) releases (pops up) if too much pressure exists in your pressure canner due to a blocked vent tube. The overpressure plug is a safety feature that’s solely for your protection. If you follow the instruction manual for your pressure-canner operation, chances are this plug will never be used.

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