I don't usually buy what I call American bread...like loaves of italian or French ( called that) then slice myself...but I have noticed those breads will mold very quickly unless I keep refrigerated...have had to toss a few half loaves out lately.....have been buying that kind of bread for years, but from a " bread bakery" which delivered to local store....now am in an area where only " big" grocery stores....bake their own....must be a different recipe...or like everything else...cutting down on something....less for more$$$$$$$