Intensely tart and fresh-tasting, this homemade verjuice turns unripe green grapes into a versatile sour grape juice that adds gentle acidity to dressings, marinades, and cooked dishes.
Remove the grapes from the stems, discarding any damaged or spoiled grapes. Wash thoroughly and drain well.
Working in batches, place the grapes in a food processor.
Use the pulse setting to crush the grapes and release their juice. Do not process into a smooth puree or pulverize the seeds, as this can add bitterness.
Transfer the crushed grapes and their juices to a jelly bag set over a large bowl.
Refrigerate and allow to strain overnight.
The following day, discard the grape solids and transfer the strained verjuice to a clean bottle or jar.
Refrigerate until ready to use.
Notes
Yield approximately 1 liter (about 4 1/4 cups), though this varies depending on grape variety and ripeness.
Use very firm, intensely sour, unripe grapes for the best results. Grapes that have started to soften or sweeten will produce a less tart verjuice.
Every batch will taste slightly different depending on grape variety, ripeness, and growing conditions.
The juice will turn brown or amber from enzymatic browning once the grapes are crushed. This is normal and does not affect the flavor.
For longer storage, freeze in small portions or ice cube trays for up to 3 months.