Ice Cream Machine / June 21, 2018 / Heaven Carrera
Gravity vs Pressure-Fed, Gravity soft serve machines use gravity to transfer soft serve mix through feed tubes into the freezing cylinder whereas pressure-fed machines use a pump to transfer the mix from the hopper to the freezing cylinder. Generally, pressurized machines are used for high volume use. A pressurized soft serve ice cream machine produces a higher overrun (amount of product resulting from the amount of air whipped into the mix). Gravity machines tend to be less expensive and easier to operate and clean, while pressure-fed machines can control the overrun air more efficiently.
On the other hand there are modern ice cream makers that are nothing like the old fashioned kind. There are electric models that are fully automated and they look and function like any other kitchen appliance. You still gather up your ingredients but instead of hand cranking the churn, the device does all the hard work. The gentle whirring sound will let you know your ice cream is being churned. While some of the ambiance of the hand crank is lost you can make a lot more ice cream with a lot less effort.