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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Test a Pressure Canner Dial Gauge at Home

May 6, 2026
Canning Basics: Use a weighted gauge to test a dial gauge's accuracy. Pressure canner dial gauges* should be tested annually for accuracy to ensure that food is not under-processed (and thus potentially unsafe) or over-processed (resulting in lower quality food). Many Cooperative Extension services will…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Venting Pressure Canners is a Critical Step

May 6, 2026
Canning basics: Always vent the canner prior to bringing it to pressure. When pressure canning, it’s very important to vent the canner prior to bringing it to the proper pressure for the food/recipe you are processing. Always. Even if your pressure canner manual does not include instructions for venting…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Prevent Botulism with Proper Canning Procedures

May 6, 2026
Low acidity, a lack of oxygen, moisture and moderate temperatures are a perfect storm for toxin production.   Home canning is about more than creating a quality, shelf-stable product. When it really comes down to it, the home canning process is about making a safe product. That goal entails…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Keep Your Pies Food Safe

May 6, 2026
Storage guidelines for homemade and commercial pies.  Whether you’re cranking out all the pies for the winter holidays (and are then faced with the question of where to keep them all), or you are making a single beautiful pie to bring to a hot summer gathering, keep your pies food safe with these…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Use Honey When Canning Fruit

May 6, 2026
It's easy to replace a portion of sugar with honey. Whether you want to use less refined sugar, don’t have quite the amount of sugar called for in a recipe,  or just would like to add the flavor of honey in your preserved fruit products, it’s very easy to substitute a portion of the sugar for honey…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Prevent Browning by Pre-Treating Fruit before Canning

May 6, 2026
Keep your canned fruit looking light and fresh. Many light-colored fruits, as well as the stem-ends of cherries and grapes, can discolor and darken when exposed to oxygen. To retain good color and flavor when canning fruit, use high-quality fruit at the proper maturity, and place prepared (peeled,…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Pumpkin Butter is Unsafe for Canning

May 6, 2026
There are no safe methods for home canning pumpkin butter. Pumpkin butter is a delicious autumn fruit spread that many folks love to preserve and sometimes give as gifts for the holidays. While canning pumpkin butter was once common, decades ago scientific studies found safety issues with the home…
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General Contact InformationProgram Support Unit 2801 Second Street Davis, CA 95618 Phone: (530) 750-1361 Fax: (530) 756-1179 Email: anrprogramsupport@ucanr.eduAlready know what you need? Fill out our PSU Request FormMeet Our TeamInternal, Research & Programmatic Events    Maya Maniar…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Handle Raw Eggs Safely

May 6, 2026
Proper handling and preparation of eggs are important for safety.  Eggs are a wonderful, nutritious food that come so conveniently packaged in their own individual shells. But raw eggs can harbor Salmonella – both on the shell itself and inside the egg, too. Egg shells can be contaminated from…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Just Say "No" to Eating Raw Batter & Dough

May 6, 2026
Be safe when handling raw flour Flour is, generally speaking, a raw agricultural product which has not undergone any treatment to kill pathogenic bacteria – such as E. coli and Salmonella – that can cause foodborne illness.  Several disease outbreaks associated with flour and flour products …
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