How can I safely and effectively use pressure canning to preserve bone broth?

To safely and effectively use pressure canning to preserve bone broth, follow these steps:

1. Prepare the bone broth by simmering it for a long time to extract flavors and nutrients.
2. Strain the broth to remove any solids.
3. Fill sterilized canning jars with the hot broth, leaving proper headspace.
4. Place lids and rings on the jars, ensuring they are tightened but not too tight.
5. Process the jars in a pressure canner according to the recommended time and pressure for your altitude.
6. Allow the jars to cool, check the seals, and store in a cool, dark place.