A range of retarder/prover cabinets and rooms, specially designed to give total control over the proving cycle, allowing users to adjust temperature, preservation and proving times and relative humidity. The one-piece cabinets are made entirely from AISI 304 18/10 stainless steel and are suitable for the insertion of trays measuring 40cm x 60cm and 60cm x 80cm. The rooms are made entirely from stainless-steel panels and are suitable for the insertion of trolleys for trays measuring 40cm x 60cm and 60cm x 80cm.