At minimum how often must a meat slicer be cleaned and sanitized when in constant use

 A meat slicer should be cleaned immediately after every use. This is because meat slicers process raw meats which are prone to bacteria such as salmonella.  To avoid the possibility of acquiring food poisoning, consider cleaning right away after using. Feed bread in the feed tube to soak and gather stray raw meat. Disassemble the parts and clean with soap and water to remove the grease. Dry and store properly. 

c. spiritual heath is subjective.