For all, sorry I hadn't replied to any of the above. I've been totally involved with getting licensed and my startup. I'm almost here and now waiting for my formulas to be reviewed and then my labels. The oxidation I have been speaking about is not in bottled product. It's in product that has been sitting in gallon jugs aging or waiting to be drunk. This was stuff I've made in very small batches over the years for personal consumption. Over time I expected some oxidation. Now, I'm concerned about production quantities and have recently been doing research to solve the problem once and for all in those flavors (particularly soft fruits) that I will consider making as we progress. I am considering Ascorbic Acid (Vitamin C) and other natural additives. thanks for your help