This lab-microwave considerably reduces the time required for epoxy-resin (EPON) embedding of specimens for transmission electron microscopy. It has an adjustable power of 100 - 750 Watts @ 2.45 GHz and enhances processing of tissue for paraffin-, immunofluorescence- and confocal specimen processing. Further, decalcification, e.g., of bones can be accelerated with this device which is equipped with a magnetic stirrer and a vacuum system.