Ergonomic knob design not only ensures a firm grip and prevents your fingers from slipping, but also makes it easy for you to monitor the situation and stay on top of things at all times. More advanced models come with embedded controls. When the cooker is switched off, the controls simply retract into the control panel for additional safety and ease of cleaning, not to mention superior aesthetic appeal of the sheer, smooth surface. Metal handles on the oven doors feature a superior, ergonomic design for an extra firm grip.
