Well, in my book it’s grape juice. It’s grapes, boiling water and sugar. We water bathed them and they sealed up great. Yes, when you open them, pour it through a strainer and drink.
We made ours on the strong side, so we fill a glass with ice and pour the grape juice over it.
When I told my mom about it, she said that’s how great grandma made her “grape juice”.
I guess I don’t care what you call it..lol.
When my mom did it, she boiled the grapes, then ran the cooked grapes through a hand-crank food mill to separate the juice from the seeds, skins, and pulp. It was a lot of work.