No, but I wonder if there's some connection here. My mom bought a 5-lb. box of matzah at Wegman's, and noticed that the edges of the matzahs were very dark. NOT an altogether bad thing, actually. But she had apparently used her shopper's card with her purchase because she received a letter from Wegman's, saying that their entire shipment of Manischewitz matzah had burnt edges, and if she wanted to return them and get another brand, there'd be no problem doing so. So maybe Manischewitz baked their matzah longer than the required maximum of 18 minutes.