[Dave128]

My f-i-l has made wine for a good amount of years (30+). He used to buy grape and grind them himself. Then he started using juice from five gallon buckets. He found that there was no real difference in the quality. He uses green glass carboys. I wish I could help you more, but he hasn't made any wine in the last five years or so and I haven't been a part of his brewing process yet.