I am planning to make a wine using Welch's 100% Grape Juice with Calcium ! Is the calcium problem here !
I have made wine with Welch's grape juice.
I only used one packet of yeast and it turned out very good. I did wonder if the added calcium in the juice I just bought was going to be an issue. Now reading the comments, I don't think it will be an issue. I will write a follow up if I have any issues.