Home Canning Guidance

All Home Canning Guidance Content

Home canning supplies and canned vegetables arranged on a countertop.

Preservation

SDSU Extension provides established and trusted research-based food preservation information.

A dial pressure canner gauge

Testing Dial Pressure Canner Gauges

For accuracy before use, it is recommended that dial gauges get tested each year. Gauges that read high cause under-processing and may result in unsafe food.

Five jars of canned stewed tomatoes sitting on a gray kitchen towel with a gray background.

Food Safety Product Evaluation Request Form

Form to request a Food Safety Product Evaluation

collection of pressure canned food

Water Bathing vs. Pressure Canning

Water bathing and pressure canning are two common ways to preserve foods by canning. These techniques use heat processing to preserve foods, and which technique you use depends on the acidity of the food.

Several canning jars filled with tomato sauce and herbs.

The “Why” Behind Unsafe Canning Practices

When choosing a food preserving method, it’s important to investigate the science behind the process and choose a method that has been researched and proven safe. This is especially important when it comes to canning.

Five jars of canned stewed tomatoes sitting on a gray kitchen towel with a gray background.

Canning Tomatoes Safely

Home canning tomatoes is a great way to preserve them for later use. It is critical to use proper methods of heat processing to ensure a safe finished product.

Several cans of homemade salsa sitting on a table.

Canning Tomato-Vegetable Mixtures

Tomatoes are unique when it comes to home canning recipes. Some tomato and vegetable recipes recommend using a boiling water bath canner, some recipes recommend a pressure canner, and some recipes offer both options.

A woman preparing a jar of pickled cucumbers in a kitchen.

Modifying Canning Recipes

Understanding how swapping ingredients, adding ingredients, increasing or decreasing ingredients and making changes to processing plays a vital role in ensuring that home-canned products are safe.

A bowl of raw meat being distributed into clear, glass jars.

Canning Meats and Poultry

Canning is a great method to preserve and extend shelf life for many types of foods, including meat products. Using safe preparation and storage practices allows for anyone to store nutritious, high-quality protein.

Several jars of canned salmon filets stacked neatly on top of each other.

Canning Fish

Canning is a great method to preserve and extend shelf life for many types of foods, including fish and seafood products. Using safe preparation and storage practices allows for anyone to store nutritious, high-quality protein.