| 摘要 |
Sauce hollandaise, sauce bearnaise or similar fancy sauces, dressings, batters or soups are prepared by maintaining a supply of mixture of ingredients including butter or margarine, flour, milk, wine, vinegar, spices, salt, egg yolks and/or others in a state of readiness at a temperature of less than 50 DEG C., drawing by a pump a desired quantity of mixture from the supply and automatically mixing the withdrawn material with air in requisite quantities and simultaneously homogenizing the mixture of withdrawn material and air so that the ultimate product is of foamy consistency. Large quantities of prepared mixture can be stored in deep frozen condition, and batches of deep frozen mixture are defrosted as the need arises. The pump which draws mixture from the supply can be used to draw a stream of washing and/or rinsing liquid when the pump, its mixture supplying conduit and the homogenizing unit are to be cleaned.
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