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Growth of molds on mixed-type sourdough bread stored in a plastic bag at room temperature. (a) Crumb after ten days of storage without visually detectable growth of molds. (b) Top view of the bread loaf showing the first molds after ten days of storage. (c) Cross-contaminated mixed-type sourdough bread slice after four days of storage with a spoiled pan wheat bread slice, highlighting the importance of sanitary storage conditions.
