There are limited possibilities for reprocessing bread waste in the bakeries. Some wastes can be processed into bread crumbs, as a replacement of part of flour in
sourdough preparation or as animal feed. However due to often microbial spoilage its use for human and animal nutrition could be risky for health of the consumers. These problems are the reason why waste bread is most often left on landfills or used as a fuel for combustion. The most promising solution for waste bread utilization
is use it as a raw material for ethanol fuel production. Earlier studies shown that waste bread is a high-yielding material for ethanol fermentation