The usual forms of processing that involve heat treatment were found to denature, or destroy, the useful proteins in the mussels.

BBC: Puppies

Since the early 1980s, the EPA has included waste created from zinc phosphate processing on its list of FO19 hazardous wastes, which requires expensive additional treatment.

FORBES: Magazine Article

The two other possibilities, which were ruled out, were on-island heat treatment - in an incinerator, gasification or pyrolysis plant - or a further stage of processing to produce a fuel product, which would also be shipped off-island.

BBC: Guernsey waste plans to bring extra costs