I started using grape juice when the Englishman on YouTube demonstrated how to use Miracle-Mineral-Supplement with ascorbic acid and grape juice. (He even showed the brand name of the juice, but I could not find that brand)So I used Santa Cruz Organic Concord Grape Juice. It is 100%juice with ingredients: Filtered Water, Organic Grape Juice Concentrate. It made the drink very easy to take as I could hardly taste anything that I couldn't tolerate. Of course, I only took three drops for three or four days.
Since this was only one of things that I mixed with Miracle-Mineral-Supplement like Lemon Juice plus ProbioticLB17, and the Wheatgrass, it is hard to know exactly triggered my life threatening Staph Infection I encountered. No doubt it was NOT ONE THING and since this is all untested ground, it is wise to move with much caution when you get adverse reactions.
*Just like idsfireguy said in the prior message, you don't know if it is a requirement to list Vitamin C was added to the concentrate, but since it a preservative it is very possible. I also totally agree that fresh grape jucie would be MUCH better to relieve ANY doubt!!!