bleeding bread

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Last updated

June 22, 2026

Quick Summary

"Bleeding bread," also known as "bloody bread," refers to bread that has reddish patches. These patches are caused by a bacterium called Serratia marcescens.12

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baking
Bacteria
…prodigiosus, causative agent of “bleeding bread.” Neither ropy bread nor bleeding bread is particularly toxic. Enzymes secreted by B. mesentericus change the starch inside the loaf into a gummy substance stretching into strands when a piece of the bread is pulled apart. In addition to ropiness, the spoiled bread…
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…prodigiosus, causative agent of “bleeding bread.” Neither ropy bread nor bleeding bread is particularly toxic. Enzymes secreted by B. mesentericus change the starch inside the loaf into a gummy substance stretching into strands when a piece of the bread is pulled apart. In addition to ropiness, the spoiled bread…
Read More