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With Air Pump Machine

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Gravity versus Pump
This refers to how the mix gets into the freezing cylinder. With a gravity machine the hopper is at the top of the machine. The mix is poured into the hopper and then gravity pulls the mix into the freezing cylinder. With a pump machine, the hopper is pressurized and the mix is pumped into the freezing cylinder. The advantages to a gravity fed machine is that they cost less and are easy to fix. The advantages to a pump machine is that you have complete control over the amount of air you put into the final product. This can affect the quality of your product and the cost.

Gravity machines can put in up to 45% air and pump/pressurized machines can put in up to 100% air (which means equal parts mix and air).

Machine Sizes
There are several different sizes, but for our purposes we’ll break it down into two types – floor model and counter-top model.

Floor model – these machines go all the way to the floor and are on rollers. They are either medium or high capacity and usually require 220-volts, but not always (see the section on electricity). They usually have two flavors and a twist (although they can come in a one-flavor model). For frozen yogurt shops, this is usually the best option.

Counter-top model – these machines sit on a counter or cart. They are usually low capacity to medium capacity. They are available with one flavor one two flavors and a twist. These machines can be a good option as an add on to an existing concept, like a sandwich shop.

Electricity
Most medium to high-capacity frozen yogurt machines require 220 volt electricity, although some are 115 volts. In either case, they will require different outlets than your standard home electrical outlet. They will also require higher amps than normally. Be sure to check with an electrician to see what will be required and how much it will cost.

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