I know people are always looking for creative, fun, and also inexpensive ideas for homemade food holiday gifts. With all the social media, blogs, and YouTube there are plenty of ideas out there.
There’s a recipe that has been going around for several years where bread and cakes are baked in canning jars and sealed with a lid. They are very attractive and popular items at holiday craft shows. N.C. Cooperative Extension can NOT recommend these products.
OK… let’s look at the potential problems.- First, it is a high moisture product. These cakes and breads aren’t really canned and because of that, they aren’t shelf-stable. Most recipes for quick breads and cakes include fruit, liquid, and vegetables, which make a rich environment for pathogen survival. Some bacteria are heat-stable and can survive the baking process and then multiply in the bread during storage.
- Baked goods are typically low-acid. This is another environment with the potential for supporting the growth of bacteria. The biggest concern is Clostridium botulinum (better known as botulism). The heat from the bread will seal the lid to the jar, while this may seem good, it isn’t because it creates a low oxygen atmosphere. Clostridium botulinum spores are abundant in nature but will only grow and produce toxin in unrefrigerated high moisture foods that are low in acid and exposed to little or no oxygen. Research at Penn State has shown that low acid canned bread or cake products may support the growth of Clostridium spores.
- Canning jars are not made for the oven. In addition to possible pathogen development, there is also a significant risk of breaking and flying glass. Canning jars are intended for use in hot water baths or pressure canners. They are not designed to withstand the thermal stresses of dry oven heat. Canning jar manufacturers also don't endorse baking in their jars.
Avoid purchasing canned bread or cakes in glass jars unless they contain additives to prevent microbial growth and meet all labeling requirements for commercial foods. If someone gives you a home-canned cake or bread product, assume that it is unsafe to eat and discard the contents. Why take the risk?
So, what can you do for a safe food gift?
Bake the cake in a regular baking pan. Most bread and cakes freeze well. You could