Frozen yogurt machines have two main jobs: 1) freeze the frozen yogurt mix, and 2) whip air into the mix. There are a few settings and components you should be familiar with on your machine to get the best performance and to make the best frozen yogurt.
Air is the secret ingredient to making frozen yogurt come out smooth and creamy. If your product is coming our icy, dense, and dark in color then it doesn’t have enough air in it. Look at our blog article or our instructional video on how to get set the air.
If your frozen yogurt comes out wet or soft, it’s because the temperature settings on your machine are not cold enough. Frozen yogurt should come out firm and stiff with no visible “wetness”. A good test of the right consistency is if you can make a curl at the peak of the yogurt swirl. If the machine is too cold the product in the hopper can freeze and the product in the freezing cylinder won’t come out (which can damage your machine).
The ideal temperature for the hopper is 36-40 degrees Fahrenheit or 2-4 degrees Celsius and the ideal temperature for the frozen yogurt as it is dispensed is 16-17 degrees Fahrenheit or about negative 8 degrees Celsius.
One of the main causes for icy frozen yogurt is worn out scraper blades. Although each frozen yogurt machine is slightly different, they all have a beater that scrapes the inside of the freezing cylinder. This makes sure no frozen ice particles build up on the edges. If the scraper blades are worn down they can’t adequately scrape the inside of the freezing barrel, making the frozen yogurt icier than it should be. The scraper blades on most machines can be pretty easily replaced and they should be switched out every month or so depending on the usage of your machine. O-rings are another part that wears out and should be replaced according the machine manufactures recommendations.