While this was not alluded to in the handling section, it is a good time to assess this question as it is a very good one. Many of you will be using this device for longer periods of time. If you do plan on doing this, you need to be aware that the handle is probably going to get warm. One can’t speak for all models in the world but do not be surprised if this happens. This is especially true if you are working the knife through the tough and thick meat. After all, the harder the machine has to work, the faster the motor will heat up.
What you really should learn to do, when you feel this heat, is allow the unit to cool down for a bit. The last thing you want to do is overwork the motor as then you will end up needing a new unit altogether.