I normally buy all my bird seed and stuff from Tractor Supply. My wife and I had some shopping to do at Wal-Mart and we went over to the bird seed area rather then make a second stop at Tractor Supply. I didn't note the brand name, but we saw a few suet blocks with mold in them. We took them to an associate. I don't know if any of you have a Tractor Supply near you, but I would recommend looking into the supply of bird products.