Newsflash
Can I Double the Recipe?
The National Center for Home Food Preservation advises against doubling recipes for home canning for several important reasons:
- Jams and Jellies: Doubling recipes can disrupt the balance of ingredients, potentially preventing the batch from setting properly. It also increases the cooking time, which may result in undesirable textures such as rubberiness or even burning of the jam or jelly.
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All Recipes: Doubling a recipe can negatively affect the quality of the final product. It may cause uneven cooking before processing and increase food safety risks, as the additional product may sit in jars for extended periods before processing. This can result in a lower initial temperature, potentially leading to underprocessing.
For optimal safety and quality, it is recommended to prepare home-canned goods in individual batches as directed in the recipe.