Quick Answer
Yes, you can can sauces that include thickeners, but the type and amount of thickener can affect the canning process and the safety of the final product.
Choosing the Right Thickeners
When canning sauces with thickeners, it’s essential to choose thickeners that are safe for canning. Common thickeners like cornstarch, flour, and tapioca starch can work well, but their usage rates and cooking times can impact the final product’s texture and consistency. For example, a 1:1 ratio of cornstarch to liquid is a good starting point for thickening sauces, but it’s essential to cook the mixture for 1-2 minutes to prevent lumps from forming.
Acidic vs. Non-Acidic Sauces
When canning acidic sauces like tomato sauce or pickles, the risk of contamination is lower due to the acidity. However, non-acidic sauces like mushroom or vegetable sauces require additional safety measures to ensure the canning process is successful. In these cases, it’s crucial to add a tablespoon of lemon juice or vinegar per quart of sauce to create a more acidic environment, which helps prevent bacterial growth.
Canning Techniques
To can sauces with thickeners, follow a tested recipe that takes into account the thickener’s effects on the sauce’s consistency and the canning process. Use a pressure canner to ensure that the sauce reaches a minimum temperature of 212°F (100°C) for 10-15 minutes, depending on the altitude and type of sauce. This will help kill off any bacteria and create a safe, shelf-stable product.
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