Was concerned with some of the reviews, but I am pleasantly surprised. I purchased this for water and oils, but thought I would try doing washes for tinctures. So far I have only done a few gallons of water but they have been no problem and will be doing an essential oil run in a few days. I do not anticipate any problems with this either. The next test will be the sugar wash I have going right now, and I again do not see any problems.These types of distillers have a bad reputation, some of them, it's deserved, but this one, in my opinion, is a gem. I am sure that if you take care of it, it will last for a long time.