Nutrition & Health

UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Determine the Gel Point for Jams and Jellies

May 12, 2026
Canning Basics: How to know that a gel will form when making soft spreads. How do you know when your jams, jellies, and other soft spreads are ready to remove from the heat? There are several tests that can determine that the gel point (aka gel stage) has been reached, including the sheet test and the…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Make Homemade Play Dough Safely

May 12, 2026
Use a food-safe recipe to make this inexpensive, fun, creative play dough. Playing with play dough is a fun and creative activity for kids to engage in and making your own play dough at home has plenty of benefits: It can be cheaper, it can be softer and smoother, and you can even get the kids involved…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Storing Canned Food in Hot Weather

May 12, 2026
It's getting hot in the kitchen! With the arrival of summertime, lots of fresh seasonal produce becomes available and “canning season” really heats up. Unfortunately, so does your garage, attic, and maybe even your kitchen.Storing canned goods in hot places, such as a garage, attic, above the stove,…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: The Pros, Cons and Limitations for Canning Meat and Poultry

May 12, 2026
Understand the difference between hot pack vs raw pack for canning meat and poultry.Hot pack and raw pack refers to the method of packing food into jars prior to canning. There are advantages and disadvantages to each method; when both options are given, the one you choose comes down to personal preference…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Pros, Cons, and Limitations for Canning Fruits & Vegetables

May 11, 2026
What does "hot pack" vs "raw pack" refer to regarding canning produce? Hot pack and raw pack refer to the method of packing food into jars prior to canning.  There are advantages and disadvantages to each method; when both options are given, the one you choose comes down to personal preference…
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Inside of a freezer door, three rows of freezer jam in straight-sided glass jars with at least 1/2 inch of headspace
UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Rules for Freezing in Canning Jars

May 11, 2026
Choose the correct shape, and don't forget the headspace! Canning jars are a great choice when it comes to packaging foods for the freezer.  They’re durable, reusable, leakproof, and they keep food from absorbing odors and off flavors from other foods in the freezer. However, it’s important to…
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An elementary school student lays on his stomach on a yoga mat outside on the school blacktop, stretching his head and chest up while his PE teacher holds a ruler under his chin.
Nutrition Policy Institute News: Article

New study finds gaps in state infrastructure for school fitness testing

May 11, 2026
In July 2025, an executive order renewed national focus on youth physical activity by reestablishing the Presidential Fitness Test; however, implementation was left up to existing state policy systems. Because effective school-based fitness testing depends on a strong physical education infrastructure,…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: How to Size Canning Jars Up or Down

May 7, 2026
Adjustments to recipe canning jar sizes is possible, within guidelines Is it possible to make changes to recommended canning jar sizes when canning your favorite recipes? In the case of canning with smaller jars, the answer is yes, you may safely size down and use a smaller jar. However, larger jar…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Baking in Canning Jars is Unsafe

May 7, 2026
Canning Basics: Canning jar manufacturers specifically recommend against using their jars in the oven. Baking in canning jars (aka mason jars) is an unsafe practice, despite those cute pictures of miniature pies and cakes you see on the internet, especially around the holidays. Why? Canning jars are not…
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UC Master Food Preservers of Central Sierra: Article

Preserve it! Series: Is it okay to wash canning jars in the dishwasher?

May 7, 2026
Washing and sterilizing are two different things. Is it okay to wash canning jars in the dishwasher? Sure, it’s a convenient option, especially if you have a lot of jars to clean, and it’s a good way to keep the jars hot until they’re ready to be filled and go into the canner. (And just a reminder that…
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