The last 4 times I bought Diamond nuts (3 times walnut pieces, once almonds), they were bitter and rancid. This was over a period of a few months at 3 different supermarkets. The packages were all w/i their sell by date. During that same time frame I got a few packages of generic nuts and they were good, so I know that I do not have a problem w/ my taste buds. It is possible that the regional distributor does not store them properly and that all the supermarkets, though under different ownership, got them from the same warehouse. Diamond customer service offers coupons to recompense, but I refused them as I do not want more bad nuts. I have been given no indication that the company is interested in correcting or even acknowledging the problem. Since most supermarkets carry only this brand for anything more than snack-sized packages, I can't get edible nuts from my local supermarkets anymore. I am writing this in hopes that the company will take notice and restore its former good quality controls. I would rather not have to make a special trip to the natural foods store or order nuts online and pay shipping.