Whether you just want to enjoy a pitcher of fresh grape juice, or you need to preserve a large harvest of homegrown grapes, making and canning homemade grape juice is easier than you might think! Yields 4 quarts.
Make the grape juice by combining washed grapes and a very small amount of water (just enough to keep the grapes from scorching) in a saucepan over low heat.
Heat and simmer slowly until the skins are soft, and the juices are released.
Gently mash the grapes with a potato masher and simmer over low heat for 15 minutes, stirring occasionally.
Strain the pulp through a damp jelly bag, or a double layer of cheesecloth. Take the solids and either compost them or feed them to any animals you have (we give them to the chickens and they LOVE them!)
Refrigerate grape juice for 24 to 48 hours to allow the sediment to settle to the bottom.
Carefully drain the juice away from the sediment and store in an air-tight container in the fridge for 3-5 days.
Canning Grape Juice
Add the drained juice (free of sediment) back into a pan and heat to 190F - you can add sugar at this point if you want, but we never do.
Place hot juice into clean, hot canning jars leaving a 1/4 inch headspace. Clean rims and add 2-piece lids.
Process jars in a water bath canner for 5 minutes at an altitude of less than 1,000 ft. Adjust processing time for your altitude according to the list below, if needed!
Notes
Note: Nutritional facts are calculated without any added sugar.