The European standard for household microwave ovens requires microwave ovens to be tested after standards that are not meant for commercial use. These safety standards for commercial microwave ovens are much more strict than for household ovens. Your insurance broker will confirm that you cannot use none commercially approved household ovens in your business.
Menumaster microwave ovens have been known for years in the commercial and household market under the Amana® brand as the inventor of the microwave oven. Since June 2010 Amana® microwave ovens are distributed under the Menumaster® brand name. They are manufactured by ACP inc. in Cedar Rapids Iowa, Part of the Ali Group. Quality of products and service organisation remain unchanged.