Food waste disposers, waste compaction units and other machines for disposing of waste; microbial decomposition apparatus for food waste; fermentation processor for food waste; food waste deodorising apparatus; food waste dehydration apparatus; food waste drying machines including under-sink installation; food waste agitators; food waste separators; waste crushing machines; food waste crushing machines; waste separators; food waste compaction apparatus (machines); waste compacting apparatus (machines); and parts and accessories for all of the foregoing included in this class; garbage disposals; and, component and replacement parts therefore; machines devised for grinding solids into powders including sewage pulverisers; and parts thereof