Put spices on the bottom of the sterile jar, then lay the grapes.
Bring the water to a boil, add salt and sugar, completely dissolve them, then remove from heat and add vinegar.
Pour the grapes with a marinade, cover and let stand for a minute. Drain the marinade, bring it to a boil again and refill the berries.
Roll the grapes and leave to cool, after a few days the grapes will infuse and it will be possible to take a sample.