grape concentrate

[the big lebowski]

hi all, im going to make rubarb wine in a few days and reading john wrights recipie it says i need 250 ml of grape concentrate ive looked on wilkos website and it says they do a 900 g tin so im not sure how much to use ,im going to make 3-4 gallons ,how much could i make using the whole tin ? any idea ? cheers

[Jungle Jane]

I googled w1lko grape concentrate & there's White grape concentrate £3.00 220ml in a bottle?

[the big lebowski]

thanks ,i`ve just been down and bought the 900 grm tin and like i said im making a few gallons in a 5 gallon fv so ill just stick it in and give it a go ,cheers