I'm still betting that the Paper Plate issue is a direct result of not being able to use a Dishwasher to "sanitise" kitchen equipment (including eating irons, plates etc.) under current UK Food Hygiene legislation. Yes ... conventional washing up would be OK ... but if ISS rely on the use of a Dishwasher under their kitchen staffing model with no contingency (less staff ... higher profit margin) ... Paper Plates it is
It's laughable ... but truly pathetic