heliguy, if your equipment, routine and taste buds are the same and you ordered the same flavor, it could be the juice HAS changed. I have seen it happen before and I don't tolerate it. If the juice is being wholesaled and resold, someone in the supply chain could have switched it to squeeze a little more profit. If the vendor changed recipes, they should at least note it as "new". If the vendor is not mixing it right, what else has it done wrong? Either way, it's a quality issue.
This stuff goes in my mouth and lungs, which I switched from analogs to preserve. To me, the "bad batch" and consistency excuses do not suffice. If the juice is "wrong", I expect the vendor to make it right. If they don't, I take my business elsewhere...and I've done just that. My