I have purchased a Carmenere 6 gallon juice from a local vendor in NY. It is Collinwood juice from Ohio. The vendor I purchased from told me - don't do anything to the juice. Just let it sit for 5 months rack it once and let it age. He said the cap on the juice is an air lock. I have only made Festa juice wine but what I have read on this forum the wine making process is similar for any juice. Has anyone bought from Collinwood and know if they treat their juice with yeast (or anything else) before shipping?