A mixer system including a bowl for receiving a material to be mixed, a mixer body having a rotatable output component, and a hinge. Use the method to balance all blocks’ erasure counts to avoid most blocks having smaller erasure count and several blocks having larger erasure count to shorten the life time of the device. The radio frequency transceiver is operatively coupled to an appliance control for receiving and transmitting instructions and information to and from the control. The heated exhaust air is collected in a collecting duct with a rising flow, reversed and supplied in a falling flow to the heat exchanger. The second sidewall of the first container section completes the second container section.