Tag: soft-serve machine

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Tips for buying a soft-serve machine

When opening a frozen yogurt store, the soft-serve machines will be the largest single expense. A good machine is critical to serving good product. There are several basic things you need to know about frozen yogurt machines. This information may seem overwhelming, but given that you might spend $50,000 on your soft-serve machines, the investment of your time will be worth it.

The Basics
To make frozen yogurt you’ll need a commercial grade soft-serve machine (soft-serve machines and frozen yogurt machines are the same thing). Here are the basic components of the machine:

  • Hopper – the area where you pour the frozen yogurt mix.
  • Freezing cylinder – this is a small shaft that sits horizontal inside the machine. The mix drips from the hopper into the freezing cylinder where it freezes.
  • Beaters – these are inside the freezing cylinder and they spin around to keep the mix from freezing solid. They also help whip air into the machine and make a nice creamy product.
  • Front plate – this is the piece that goes on the front of the machine with the handles. It also includes the opening where the frozen yogurt is dispensed. Most machines have a star shaped design where the product comes out – giving the frozen yogurt the look we all recognize.
  • Overrun – this is the air that is in the frozen yogurt mix. Air is critical to making a nice creamy product. Without overrun, the product will come out dense, icy, and won’t taste right. Visit the Training page on the Nanci’s website for a video on how to control overrun.

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.

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).

Air Cooled versus Water Cooled
The motors in soft-serve machines produce heat and need to be cooled. The two methods for cooling are either air cooled with a fan or water cooled with pipes that run water through the machine to cool it. Overall, we recommend air cooled because they are less expensive to install and need less maintenance.

Air cooled machines don’t require any additional investment when installed, and they can be less expensive to operate (depending on your electricity costs versus water costs). Water cooled require installation of a water system, which can cost $15,000-$40,000. Water cooled machines make less noise and produce less heat. You may save on utility costs if your water costs are much lower than your electricity.

Soft-Serve Machine Companies
There are several companies that manufacture and sell frozen yogurt machines. Some are made in the United States and others are made in other countries, like China. Prices on floor models range from $5,000 to $15,000. The machines will vary in quality, warranty offered, and production capacity. The right machine for you depends on your constraints (like cash or the ability to finance) and your goals (how many machines you need, the type of concept you are doing). There isn’t always just one right answer for what machine you should buy. Contact a frozen yogurt expert at Nanci’s and we can discuss it with you. We don’t sell machines, so we’re a great neutral, third-party to talk with.

If you decide to buy machines at the low-end of the price range, make sure to machines are made with good materials and parts. For example, all machines are made with stainless steel, but steel has different grades of quality. Some machines that are made with the low-quality stainless steel can rust and cause many problems.

Also, keep in mind that regardless of the brand of soft-serve machine you purchase, you’ll want to make sure you have good access to service. All machines break at some point, and you’ll need a good technician that can work on them.

In your negotiations with machine companies be sure to ask for free in-person training and free parts (such as o-rings and machine lube). Some companies offer free Nanci’s product to off set the initial costs of the machine.

If you have any questions call Nanci’s Frozen Yogurt at 1-800-788-0808.

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Machine Maintenance

The start of a new year is aSLX400En excellent opportunity to take a look at your soft-serve machine and make sure that it is primed and ready to go for 2016! This includes not only continually cleaning your machine, but also proper lubrication and checking for any wearable parts that may have seen better days. Annually is a good time to remove the side panels and visually inspect for leaks from the motor casing and loose connections. You should also take the temperature of the hopper and freezing cylinder on standby and auto modes and compare that to what the machine is saying to check that it is calibrated correctly still. Ensuring that your machine is running properly and that it is consistently producing a quality product throughout the year will be essential to your customer base and overall margins at the end of the year.

Cleaning your machine is an important aspect of maintenance to help the longevity of your machine. Get in the habit of cleaning your machine at least once a week. This process includes running a sanitizing agent through the machine, effectively killing any bacteria that may have grown or built up.  If your machine goes weeks without being thoroughly and properly cleaned harmful bacteria may build up and could potentially lead to spoiled product.

Once the sanitizing agent is mixed with water and poured into the hopper of the machine, put the machine on the wash cycle and allow the product to cycle through the machine for a period of 5 minutes. This will allow the sanitizing agent to reach all of the nooks and crannies of the machine, killing any remaining bacteria. Be careful not to enable a feature on the machine that willPacket x2 freeze down the product, as the process of the water freezing could severely damage your machine. Every other week, we recommend pulling all of the machine components such as the face plate and the freezing cylinder shaft and let them soak in hot soapy water as well. The process of cleaning the machine is simple in its procedure, and it can be done any employee if they are properly trained how to do so. Check out http://frocup.com/product/sanitizer-packets/ to get started today!

Lubrication is another key technique in keeping your machine running for an extended period of time. The main component of the machine that requires lubrication is the back end of the shaft that sits deeper inside the freezing cylinder. Pull this out and pull off the rubber gasket that fits on the end of it. Lubricate around the square piece at the end of the shaft and place the gasket back onto the lubricated piece. When you pull out the freezing cylinder shaft to clean it is an excellent time to lubricate it as well. Tubes of all-purpose lube are also sold at http://frocup.com/product/machine-lube/.

There are various wearable machine parts that can become damaged and wear down over time. The scraper blades, for example, attach to the shaft on the inside of the freezing cylinder wear down and don’t scrape the edge of the cylinder with the exactness and precision that they once did. This leads to the freezing of product on the edge of the cylinder and can lower the overall quality of your product. These scraper blades are different with each individual machine company so make sure the blade is rated for your model of machine before buying replacements. You can find various machine springs, seals, and O-rings as replacement parts at http://frocup.com/product-category/supplies/.

Look for general brittleness or the wearing down of plastic parts as key points in replacement. Replacing parts before they go out will save you from costly damage to other components of the machine and keep you from having a non-functioning machine during your peak season. Understanding your machine is very important in maintaining it over time. Pulling out all of the main components and familiarizing yourself with them as you sanitize, lubricate, and replace any necessary parts will help you to keep your machine running strong throughout 2016 and beyond.machine breakdown diagram

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Frozen Yogurt Training Videos

We’re excited to introduce three new training videos available on our website. We’ve kept them short and sweet, but packed with useful demonstrations.

The videos include:

  • How to Prepare Nanci’s Mix
  • How to Add Air into Mix
  • Soft-Serve Machine Overview

You can view the videos at www.nancis.com/training

Here’s our new Intro to Nanci’s video as a teaser…

 

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Two Magic Numbers for Frozen Yogurt

The correct temperature setting on your soft-serve machine is critical for making a good frozen yogurt product and for extending the life of your mix. Every frozen yogurt shop owner should have a good food thermometer like this one: https://frocup.com/product/digital-thermometer/

Use a thermometer to check the temperature in the hopper (the reservoir where you pour the mix) and the temperature of the product when you dispense it from the machine.

Magic Number #1

Hopper Temperature = around 35 degrees F (between 34 to 39 degrees)

The hopper temperature is critical for keeping the product fresh The temperature in the hopper should be under 40 degrees F. Any warmer and the product can go bad. It should also be warmer than 32 degrees or else the product in the hopper will freeze. If you see the product freezing in the hopper, just raise the temperature a degree or two.

Magic Number #2

Finished Product Temperature = 17-19 degrees F

The temperature of the product when it is dispensed should be between 17-19 degrees F. This would also be the temperature of the freezing cylinder. Because Nanci’s Frozen Yogurt use pure fruit sugar, the temperature for our mixes needs to be a little lower than for cane sugar mixes. A sugar mix might come out stiff at 22 degrees, but Nanci’s mixes are better at around 18 degrees. This can easily be adjusted on your machine – just consult your manual or contact the manufacturer if you need help.

If your product ever comes out wet, soupy, or melted then you need to lower the temperature. Frozen yogurt should come out stiff, creamy, and frozen (not wet). It’s amazing what a difference a couple of degrees makes.

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How to Get the Most out of Your Machines

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

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.

Temperature

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.

Parts

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.

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Importance of Cleaning and Sanitization of Frozen Yogurt Machines

Cleaning your frozen yogurt machines properly can help produce better tasting product and prevent any issues of harmful bacteria. Most manufacturers recommend that you clean and sanitize your machine at least once every three days, but some municipalities may require you to clean the machine every day. Check with your local health department for your local regulations. Dairy products can breed many kinds of harmful bacteria, so it’s important to stay on top of your cleaning and sanitization schedule.

The first thing to do before any cleaning is to look in the owner’s manual for the proper procedure. Many machines will come with a special brush kit to get product out of every part of it. The manual will tell you where to use them. The manual will also tell you what types of sanitizer are and aren’t okay for your machine, and which parts you should inspect every cleaning for possible replacement.

Most frozen yogurt machines follow these procedures. First, drain the machine of product. Depending on the age of the product you could put it into a freezer and reuse it. Next, get access to the hoppers and pour in water. Turn on the cleaning cycle and let it run for the recommended time. Drain the water and use your brushes to any speck of product out. Repeat the rinsing and brushing until it looks clean, then remove the scrapers and any other recommended parts. Clean these thoroughly, and check the hopper again for any missed product.

Once your parts are clean, it’s time to sanitize them. Make sanitizer according to the package directions, then soak any parts you removed for the recommended time. Make another batch to put into the hopper and use it according to your owner’s manual. Once you’re done soaking, rinse out the hopper and the parts, replace them, and then put your product back into the hopper and turn the machine on as normal.

In about 20 minutes, you should be ready to go again with fresh frozen yogurt in a clean and safe machine. Not only that, but your frozen yogurt will taste much better too. The first batch out of a clean machine is the best! Try it yourself and see.

About the Author

Emily is the customer information “champion” at Spaceman USA – a friendly manufacturer of soft serve and frozen yogurt machines. With technical knowledge of the machines and understanding of soft serve business, Emily writes in various topics – from business management to delivering the best food quality to customers.