We use to order Lactaid with no issues. When they released this product of theirs, I was skeptical since we were satisfied with our original. first order I noticed the heat stamp left behind black residue, not that bad. 2nd order it was gone, great! 3rd order, it was back and milk was off tasting. Next order milk was not fresh tasting, tasted like it was sitting out in a warehouse and was only a week until expiration date. My kid stopped drinking the milk. Too risky unfortunately. Since we are lactose sensitive here, we are limited on our options and this is not it.