Belt Press Increases Production for Apple Cider Company

A fresh apple cider production company in upstate New York tripled its production and cut its manpower in half in less than two years by installing a highly efficient and easy-to-operate Flottweg Belt Press.

The History

Minard Farms Beverage Company, Inc., is a 5^th generation, family-owned and operated, 320-acre cider mill located in the heart of apple country in the Hudson Valley in Clintondale, N.Y. Minard Farms presses its cider from a blend of tree-ripened, hand-picked apples and never uses fruit that has fallen on the ground. Each pressing happens onsite at the orchard and is made from a carefully selected blend of apples that ensures a consistently high-quality flavor, sweetness, and color. Minard Farms flash-pasteurizes or UV-treats its cider, depending on customer needs.  Minard Farms cider contains less than 1/20th of 1% of potassium sorbate as preservative and has an 8-week code. It is Kosher Certified (Vaad Hakashrus of Crown Heights) and licensed in New York and Connecticut. In addition, it is HACCP Certified and has had a HACCP Plan in place one year prior to the FDA requirement to ensure safety.

 

Producing a little less than one million gallons per year, the cider is packaged in the facility and used for two primary purposes:

1. Fresh product packaged in gallon, half gallon, and pint-sized packages.
2. The other side of the business is the fermentation side—used for hard cider with some sort of distillation process that is shipped out to the tanker straight from the press.

The Challenge

The business was previously using a traditional means of pressing apples. “Our machine happened to be a horizontal machine that you fill with mash,” said Fred DeMaio, Minard Farms Beverage Company’s Vice President. “It was a batch process. It required a lot of labor at the end of each cycle to shake the bags out to get the mash out of the bag. The machine we had in place was good for about 1,000 gallons an hour.”

 

The machine was huge and required significant manpower to operate it—usually four men per shift. It also required about four manhours to clean the equipment after every shift. “At the end of any 8- to 10-hour day they were all dead tired,” DeMaio said. “The press took up a big portion of the room. It was made of carbon and steel and fit into the food production environment. A lot of farmers have used that kind of press through the years.”

The Solution

DeMaio researched new technologies and discovered the Flottweg Belt Press. “We were just killing our guys,” he said. “It was very easy to do some simple math on a belt plate press where the process is continuous. I began investigating technologies. There are probably three or four belt presses that main manufacturers are using. Flottweg has the longest history and the most success stories, whether they are filtering juice out of fruit or solids out of sewage, Flottweg has the best technology and the best support. We found this out quickly.”

 

DeMaio said that Flottweg’s price was not the most attractive at first, but after further discussions and massaging a few details, their price became attractive when compared to the value and the manpower and ease-of-use savings realized. “What was even more attractive was the depth of the company,” he said. “Their service and knowledge are so good. Their guys really explained the ins and outs of belt presses.”  During the first year of using the Flottweg Belt Press, Minard Farms increased its yield by three times and lowered its man power by 50 %, recovering the cost of the belt press with the savings realized within the first 12 months, DeMaio said.

 

“With this new technology, we have one guy managing the press and one guy managing the flow of the apples,” DeMaio explained.  “One guy can actually observe the process to make sure the equipment is operating properly. Now, it’s really a non-physical type of environment. At the end of the cycle, these guys have plenty of energy left for the cleanup, which now only takes two hours instead of four. This is good for morale, and it’s good for production. We are still producing 1,000 gallons an hour, but at the end of this cycle, everyone is happy. With the old technology employee retention was low and the morale was low. Guys would call in sick or just not show up at all.”

DeMaio said there is also an aesthetic value to the press. “It’s easier to clean because it’s all stainless steel,” he said. “When we made the change, we removed all the carbon steel from the process. Because the Flottweg press is stainless and shiny, the guys want to take care of it more because it just looks better. We’ve been through two seasons now and the guys are actually proud to work in there.”

 

An additional advantage is a built-in Clean in Place (CIP) feature.  “We can hook the cleaning room to the press, so it runs and cleans pretty much on its own,” DeMaio said. “With the old press, there was no CIP ability at all. Those machines had to be hand cleaned, and hand sanitized. Because it was so big, the brushing in the nooks and crannies of the old press was very laborious and required a lot of thought, a lot of effort, and a lot of work. It was a struggle to keep that press clean. The new Flottweg press is clean and shiny all the time.”

The apples are pressed and mashed, and the liquid is separated from the skin and seeds. After extracting the liquid, the rest of the material is transferred to a dump truck and then recycled into beef cattle feed.

How it Works

The Flottweg belt press is suitable for various applications in mechanical separation technology:

• Juice manufacture: Fruit juice (direct juice), concentrate and vegetable juice
• Dewatering of brewer's grains
• Algae extract
• Coffee grounds
• Herb extracts
• Soya
• Starch
• Additional applications in the areas of foodstuffs, chemicals and pharmaceuticals

 

The pulp is continuously and evenly spread over the bottom belt. Then the top belt is guided onto the product. This ensures that the surface pressure increases evenly, and that a stable pulp product cake is formed. 

In the press area, dewatering takes place via an L-profiled roller which ensures the liquid flows out quickly. Following this, the pulp is pressed out via press rollers with reducing roller diameters. The increasing pressure load extracts the juice from the pulp optimally and quickly. 

Optional linear press rollers and edge zone pressure rollers increase the effectiveness of the belt press further. In this way, a juice yield in excess of 90% can be achieved in 2-stage operation. For stable continuous operation, high-pressure nozzles clean both belts continuously after the pomace has been removed.

The Results

Minard Farms Beverage Company, Inc. completed its second full year of using the Flottweg equipment. “We haven’t had any problems,” DeMaio said. “We’ve had a few challenges, but challenges are just the nature of the beast. The Flottweg tech team in Kentucky is easily reachable and is quick to help us fix them. We have made a couple of other improvements and for those improvements we also used Flottweg equipment. They really helped me think about what else we needed so we could get the right kind of equipment.”

 

DeMaio said the equipment is greased on a regular basis, but otherwise it requires little maintenance. The machine comes with some excellent safety features. “When all is in place, we have virtually nothing to worry about,” he said. “The belt is retractable and if it gets too far off track for whatever reason, there is a feature that shuts the belt down. With the old belt technology, the belts could trip and wreck themselves and there was nothing you could do about it except place a man there to watch it.  This gives us even more savings just to not have a man sitting there babysitting the belt.”

 

The electrical and control portions were easy to install, DeMaio said, and the installation was accomplished in house. “The documentation that came with it was over detailed, which was another nice feature,” DeMaio said.

The apple cider business is seasonal. September through December is the busy season, and the Minard Farms belt press operates on 10-hour shifts every day except Sunday. During the off season, it runs two to three days a week and occasionally four days a week with 8-hour shifts. With the new Flottweg technology in place, the apple cider company has room for growth. “This press probably has a capability of about 4 million gallons a year, so we are only touching about a fourth of its capacity,” DeMaio said. “We could run a second shift if necessary and still have men who actually wanted to work on that end of the plant. There is no doubt about its durability and ability to handle additional capacity.”

Daniel Lakovic is the Business Development Manager for Flottweg Separation Technology Inc. Daniel holds degrees BS in International Business and an MBA in Finance. He can be reached at dlakovic@flottweg.net.