Why does rye bread grow mold fast?
Several factors determine the rate at which bread may mold. Rye tends to be more artisanal in nature, thus containing fewer preservatives, which would allow for quicker mold formation. Also, this bread may have more moisture, and more sugar, which provides food and an environment conducive to mold development. To stave-off this unwanted mold, you might consider freezing your bread and using it as needed. Freezing does not affect the texture or flavor of bread, but extends its shelf life indefinitely if well wrapped. Also, you could store your bread in a low-moisture environment that isn’t too dark or too light, as mold thrives in darkness but light could destroy the bread. NEVER refridgerate your bread.