The jar sealed, is the food still safe? (and other questions)

Tested recipes recommend glass Mason-style jars and 2-piece self-sealing lids for home canning. In the past few weeks, several calls have come in about jars and lids, and ensuring a good seal when canning foods at home. Handling jars and lids correctly will go a long way towards successfully preserving your garden’s bounty for the […]

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Preparing for a home food preservation season: pressure canners

A pressure canner may have a dial gauge for indicating the pressure or a weighted gauge, for indicating and regulating the pressure. Regardless of the type of canner chosen, the USDA recommends that a canner be large enough to hold at least 4-quart jars standing upright on the rack, with the lid in place. A […]

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Best practices when choosing home canning jars

The most important step in safe home canning is to follow an up-to-date research tested recipe, including using a standard glass jar. Jars for home canning come in a wide variety of sizes, ½ pint, pint, 1½ pint, quart, and ½ gallon sizes. Not all sizes can be safely used in a recipe, so check […]

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Put a Lid on It! Lids for Home Canning

By far the most important step in safe home canning is to follow an up-to-date, research tested recipe. Research-tested recipes recommend metal 2-piece lids for home canning.  Two-piece lids are sold to fit regular and wide-mouth glass canning jars and are made up of a flat metal lid and a metal screw band.  The lid […]

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Focus on food safety when making maple syrup

Making maple syrup is a time-honored tradition in many parts of Wisconsin, and it is as much of an art as a science. Even though sap does run in other trees such as birch and elm in early spring, maples produce more and sweeter sap than any other tree. Collection. Once trees are tapped, a […]

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Unsafe to can tree sap at home

If you have been scrolling the internet of late you might have noticed that some companies are touting the reported health benefits of drinking tree sap. Some ads suggest that drinking tree sap or ‘tree water’ is a natural way to hydrate. Regardless of whether drinking tree sap is a ‘natural way to hydrate’, canning […]

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Safe Preserving Tips in the time of COVID-19

Whether you are new to canning, returning to canning because of the pandemic, or have always canned the bounty of your harvest, there are certain tips that will help ensure that your time and efforts lead to safe, healthy food for your family.  Use recipes that are up to date. Some canning recommendations have changed […]

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An update on safe use of steam canners

The University of Wisconsin-Madison conducted research showing that an atmospheric steam canner may be used to safely can naturally acid foods such as peaches, pears, and apples, or acidified-foods such as salsa or pickles. The steam canner uses only ~2 quarts of water (compared to 16 quarts, or more, in a boiling water canner) so […]

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Canning update: successful jar sealing

Successful jar sealing often begins, and ends, with the lids.  Home canning requires use of a 2-piece sealing system, a flat metal lid and a metal band. Several years ago, manufacturers such as Ball changed the design of the lids to increase rust resistance and seal-ability and most lids no longer need to be preheated.  […]

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Safe substitutions when canning

The safety of the food that you preserve for your family and friends is important to you. The University of Wisconsin Division of Extension supports using up-to-date, research-tested recipes so that you know that the food that you preserve is both safe and high in quality. Here are a few quick tips on changes and […]

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