The 4 Factors That Cause Your Bread to Mold. According to Nichole Dandrea-Russert, MS, RDN, there are four factors that can cause bread to mold: air, moisture, time, and temperature.The longer it ...

As a result, the bread gets moldy faster than other store-bought breads. “This is bread that I bought about a month ago, and there’s no signs of mold at all,” she explains, showing a partial ...

Better known as “black bread mold,” R. stolonifer starts off as fuzzy white spots that then turn gray or black, hence its name, according to Dr. Detwiler.