getting tannin from raisins?

[Paulc]

Hey all, I am thinking of trying a blackberry/cherry mix wine from concentrate. And I was wondering if I can get enough tannin from raisins rather than buy tannin additive.

Any thoughts? How many pounds of raisins per gallon must?

tia, paulc

 

[ameinecke]

I am making an orange wine, 5 gallons. I used a pound of raisins for it, but found I still did have to add another 1 and a 1/4 teaspoons of grape tannin.

 

[Lurker]

I am making an orange wine, 5 gallons. I used a pound of raisins for it, but found I still did have to add another 1 and a 1/4 teaspoons of grape tannin.

How did you know how much more you need?