The number of fixed speeds of rotation of the attachments provided in the design of the food processor. The more of them, the more accurately you can choose the required speed for each specific mode of operation. It is worth noting that some devices do not have fixed speeds — the control is carried out smoothly (see Stepless speed controller)
A control that allows you to smoothly change the speed of rotation of the food processor engine — for more precise adjustment of speed and setting the optimal mode for different products. With stepwise speed control, a situation may arise when a higher speed value is already too high, and a lower speed is not yet enough.
Smooth control avoids such situations.
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The plastic blenders are the most common due to their low cost and durability. However, the material itself has a number of important advantages. So, it is easy to clean and dries quickly, plastic bowls can easily withstand a fall from a small height (up to 1-1.5 m) thanks to good margin of safety. Additionally, plastic bowls have a minimum cost. In the list of disadvantages, one can be noted the exposure to the rapid appearance of scratches and scuffs on the surface of the bowl.
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The glass blenders are resistant to scratches, and they allow you to monitor the process of processing products thanks to transparency. An important advantage of glass is the absolute chemical neutrality to foodstuffs and liquids. This material does not absorb odours, it can be washed in a dishwasher, the working surfaces of the bowl are practically not exposed to scratches and scuffs. Thus, glass bowls do not lose their original presentation over time. Among the disadvantages, fragility can be noted — glass does not tolerate falls even from a small height. Additionally, glass bowls are very expensive.
— Metal (most often it is stainless steel) is the most strong and durable material. However, it is opaque, and
a metal blender usually affects the cost of the device. The metal bowls are perfect for crushing ice and crushing nuts. Such models are not afraid of falls from a heig
...ht and rough handling, they can be freely washed in the dishwasher.
