Wash all canning jars, lids, and equipment thoroughly with hot soapy water.
Sterilize jars in boiling water (in the canner) for 5 minutes. Keep them in the boiling water until needed.
Add the lids to a saucepan of barely simmering water to keep warm.
Add the orange juice to a large pot and heat over medium heat, stirring often.
Once a minimum temperature of 195ºF (91ºC) is reached, ladle into hot jars, leaving ¼” headspace.
Wipe the jar rims with a clean towel or a vinegar-dampened clean cloth.
Add a warm lid to each jar, then add a lid ring until fingertip tight.
Transfer the prepared jars to the canner and add a lid. Bring to a boil over high heat.
Once the water has returned to a rapid boil, start the time.
Process for 15 minutes in the boiling water bath canner.
Once the time is up, turn off the heat, remove the lid, and remove the canner from the heating element. Allow the jars to rest for 5 minutes in the water.
Once the 5 minutes are up, remove the jars and place them in a location where they can go undisturbed for at least 24 hours.
After 24 hours, check the seals and remove the canning rings. Wipe down the jars and label them. Any jars that have not been sealed should be moved to the fridge to be eaten right away.
NOTE: For the best quality juice, freeze after canning**. This prevents separation, and helps to preserve flavor, color, and nutrition - but is optional.