When following a validated home canning recipe that calls for broth, it is essential to select the appropriate type for safety reasons. Reconstituted bouillon cubes, powders, pastes and bone broths are not suitable for home canning, as they often contain ingredients such as starches or gelatin, for which there is insufficient data regarding their impact on canning safety.
If the recipe specifies broth, a commercially prepared liquid broth—matched to the flavor indicated in the recipe—is an acceptable option. However, it is important to note that broth and stock are not interchangeable in home canning. Stock typically differs in composition and may pose safety concerns, making it unsuitable as a substitute in tested recipes.
Source: National Center for Home Food Preservation – Newsflash
