The invention relates to a slicing machine (1) for cutting food slices by means of a carriage (2) that can be moved back and forth and a rotating cutting blade (11), wherein the slice thickness can be adjusted by means of a stop plate (12). For cleaning purposes, the carriage (2) can be emptied by tipping the carriage. In order to reduce the risk of injury during cleaning work, a blocking device is provided, which allows the carriage to be emptied by tipping the carriage only in a certain position and while the stop plate is blocked. Said safety feature is provided by means of a blocking slide (41), on which two mechanical safety precaution elements act independently.