gastrosurf
Posted 1.41PM
Thu 17 Apr 2008
Most food processor run at high speed and use two flat convex blades to cut through any ingredients put in them - you can get other attachments, but the cutting blade is the main mode of operation usually.
When making pastry, a food processor works quite well because what you need to do is to reduce the fat down to a fine grain and integrate it with the flour - so the blade can be used to 'cut the fat in' without working the flour too much and developing the gluten. This kind of technique should produce a 'short,' melt in the mouth, pastry.
The important thing to remember is to stop the machine as soon as the dough starts to roll up into a ball - if you keep going after that point, then the dough will get overworked and may well produce tough pastry. You may also find that, unless you have a very good food processor, that the motor burns out quite quickly.
Food mixers provide a somewhat different function: they usually come with a whisk that can be run at high speed for jobs like whisking eggs for meringues, etc. Plus a mixing iron for things like cake mixes. And then a dough hook for bread or pasta type dough. These attachments will normally be run at different speeds.
The dough hook is usually run at the slowest speed, and the idea, in contrast to the use of the Food Processor when making pastry dough, is to develop the gluten in the flour/dough mix to produce an elastic, stretchy-like dough - the dough-hook providing a kneading action.
Most of the quality Food Mixers have some method of varying the speed - by way of gearing or a variable speed motor. Working bread dough needs a machine with some power to provide umph (torque) at low speeds.
For a really good domestic Food Processor, I would recommend Magimix, but they are fairly expensive. Kenwood do some good machines at a lower price.
The main contenders in the domestic Food Mixer market are Kitchenaid and Kenwood – some people argue that one is better than the other, personally I don’t think there is that much to choose between them.
For anyone on a budget, the Kenwood Chef mixer is a very good buy, and they can be bought new for around £120.
With regard to which type of machine is best for you, it really depends on the kind of cooking you have in mind.
You can get Food Processors with whisk attachments, and you might get away with using it for a light cake mix, but I wouldn’t use a Food Processor for heavy dough work.
Hope this helps.