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Frozen Custard is an ice cream that has to, by USDA definition, contain 1.4% egg yolks. A true frozen custard is a very dense and smooth dessert. It is produced in a very specific type of ice cream machine - a continuous freezer as opposed to a batch freezer (for gelatos and more traditional ice creams) or soft serve machines (which work in a different way). The secret is to rapidly freeze the product and then remove it from the barrel of the machine into a storage or dipping cabinet. The amount of air that is incorporated into the finished product should be around 20% - that is the mix increases in volume by 20% from it's liquid to it's frozen state. Soft serve machines typically double the volume of product making the product extremely airy. Gelato typically has 30%-35% overrun (the increase in volume) As any ice cream mix that has 1.4% egg yolk in it cna be called a custard mix, you can use any machine to freeze it. However, you can certainly taste the difference between a true, low overrun custard and custard that is produced in a different type of machine.

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16y ago

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