I just bought seven 5 gallon buckets of Chambourcin grapes off of a local winery with the hopes of making a 5 gallon batch. I de-stemmed the grapes and froze them. Ended up with around 90lbs. Having only worked with 1 gallon fruit and grape (Catawba) batches I quickly realized my 6.5 gallon bucket will not be big enough for the primary. What size container should I use for a five gallon batch and what is the largest batch size I could use in a 6.5 gallons bucket? I don't want a big mess in my house!