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Monday, October 12, 2009

Electric Blender



A blender is a kitchen used to mix ingredients or puree food. The term typically refers to a stationary, upright electrical device, which is to be distinguished from a hand-powered or electric mixer that may be used for similar purposes. Blenders are also used in laboratory applications.

The bender container can be madeof glass, plastic, stainless steal, or porcelain, and often has graduated markings for approximate measuring purposes. At the top of the container is a lid to prevent ingredients from escaping during operation. At the bottom is a blade assembly, sometimes removable for cleaning purposes. In cases where the blades are removable, the container should have an o-ring between the body of the container and the base to seal the container and prevent the contents from leaking.

The container rests upon a base that contains a motor for turning the blade assembly and has controls on its surface. Most modern blenders offer a number of possible speeds. Low-powered blenders require some liquid to be added for the blender to operate correctly. This is because the liquid is used to move the solids around the jar and bring it in contact with the blade as the "whirlpool" fluid movement brings items from the top to the bottom. High-powered blenders are capable of milling grains and crushing ice without such assistance.

Some of the functions of blenders have been taken over by food processors. In particular, thicker mixtures such as mayonnaise and hummus are easier to make in food processors.

Blenders are used both in home and commercial kitchens for various purposes, such as

  • Mix and crush cocktails
  • Emulsify mixtures
  • Make smooth purees of semi-solid ingredients
  • Reduces spices and seeds to powder
  • Help dissolve solids into liquids.

  • A blender consists of housing, motor, blades, and food container. A fan-cooled electric motor is secured into the housing by way of vibration dampers, and a small output shaft penetrates the upper housing and meshes with the blade assembly. Usually, a small rubber washer provides a seal around the output shaft to prevent liquid from entering the motor. Most blenders today have multiple speeds.
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