Ice cream maker
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An ice cream maker is a machine used to make homemade ice cream.
There are both manual and electric types of machine.
An ice cream maker has to do two things; the mixture has to be
cooled, and during this cooling process, the mixture has to be
constantly churned to break up ice crystals that form and introduce
some air to the mixture so that the resultant ice cream will have a
smooth, creamy texture. Whatever the type of ice cream maker, it is
possible to make ice cream of a texture that is ready to serve
straight out of the machine. However, some recipes, especially those
containing alcohol, need to have the freezing process completed in a
freezer before the ice cream is a firm enough consistency. Once ice
cream is in the freezer, it usually needs to be taken out of the
freezer between 20 and 30 minutes before serving to soften it,
partly to make it easier to serve and eat and partly because when
ice cream is very cold, the flavour is impaired. |
Manual MachinesThese machines take the form of an inner bowl which sits in a larger
outer bowl. The inner bowl has a hand cranked mechanism which turns
a paddle (sometimes called a dasher) to stir the mixture. The outer
bowl is then filled with a mixture of salt and ice which provides
the cooling power. This type of ice cream maker is inexpensive, but
inconvenient and messy as during the process the ice and salt
mixture melts and then the user is left with a lot of salty water to
dispose of. Also, between each batch of ice cream the ice and salt
mixture has to be refilled.Electric MachinesThere are two types of electric ice cream machine. Both have an
electric motor which drives the paddle to stir the mixture. The
difference is in how the cooling is performed.
Cheaper machines use a double-walled bowl which contains coolant
between the two walls. This is frozen in a domestic freezer for up
to 24 hours before the machine is needed. Once frozen, the bowl is
put into the machine, the mixture is added and the machine is
switched on. Twenty to thirty minutes later, the ice cream is ready.
The advantage of this type of electric machine is low cost,
typically under $100. The disadvantage of the pre-frozen bowl
approach is that only one batch can be made at a time. To make
another batch, the bowl must be frozen again. For this reason, it is
usually possible to buy extra bowls for the machine, but of course
these take up a lot of freezer space.
More expensive machines dispense with the coolant bowl and instead
have their own mini-freezer built in. When using these machines, the
cooling system is switched on about 5 minutes before the machine is
needed, and then the mixture can be added and the paddle switched
on. As with coolant-bowl machines, ice cream is ready in 20 to 30
minutes. The huge advantage of this approach is that use of the
machine requires no pre-planning, and batch after batch of ice cream
can be made. The main disadvantages are cost, as these machines cost
upwards of $300, and size. As well as being large, this machines
usually cannot be moved without waiting 12 hours to use the machine
again as moving the unit upsets the coolant in their freezing
system. For this reason, it is usual to keep these machines
permananently on the work surface which is impractical in the
smaller kitchen. Because of these disadvantages, these machines are
usually only for ice cream fanatics.
The ingredients for ice cream usually include:
Cream
Milk or milk fat
Sugar
Flavoring such as fruit, chocolate and so on. |
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