Directions:

1. Pick grapes from stem and rinse thoroughly in a colander or sieve.
2. In a large pot on the stove, cook the grapes and sugar for 10 minutes. Medium-high heat at first and turn it down to medium-low once a simmer has been reached. Use a potato masher to mash the grapes for the first couple of minutes and then stir occasionally.
3. Add the cooked grape mixture to a food processor or blender and process for 30 seconds.
4. Place a sieve over a large bowl or measuring cup and add the grape puree to the sieve. Using the back of a spoon, push the puree against the sieve. After 2-4 minutes all of the juice should have fallen through to the bowl.
5. Pour 5 cups cold water over the leftover grape puree, washing it and making sure every bit of grape juice/sediment has been extracted.
6. Transfer the unfiltered grape juice into a large jug or pitcher and store in the fridge or enjoy a glass right away.