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Tea drying Equipment

Industrial drying machines are designed to remove moisture from your product. But the drying process must cater to variations in the state of matter and molecular structure of the input material. Industrial dryer technology exploits the modes of heat transfer (convection, conduction, radiation, evaporative cooling) to control the moisture content.

Drying

Chinese legend has it that tea was created by accident over 2700 years BC. A servant boiled drinking water for his emperor when leaves from the Camellia sinensis tree fell into it – and the emperor decided to taste the drink. While to make tea nowadays on a medium to large-scale you need tea processing equipment like dryers instead of just a tree and wind blowing it, mythology adds a special flavor to the tea industry story.

Purposely focused on the indirect heating and drying of slurry, filter cakes, powders, pastes and granulates at a high speed - Dispersing liquids quickly and transforming products such as filter cakes and slurries from centrifuges, wet solids from decanters and press cake after press filtration into dry powders are among its striking features.


<h2>Continuous paddle dryer for rapid and effective indirect drying</h2>
This continuous paddle dryer from Hosokawa Micron is a high-speed dryer. It consists of a fixed cylindrical chamber with an eccentric agitator inside and two independent movements, perfectly capable of rotating on its own axis and tangentially to the cylindrical chamber too.

It has a patented jet rotor design, which allows the injection of a gas or liquid through the paddles and into a thin layer of material as it spirals along the cylindrical wall of the unit. This continuous paddle dryer is designed to be utilized with a variety of heat sources and for other numerous applications, not to mention its speed and effectiveness.

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Continuous paddle dryer

Freeze drying is the most gentle and aroma protective method of drying, widely used in the coffee industry, but also with applications in the food industry and pharmaceutical sector. Specialist continuous freeze drying plants are bespoke designed to meet your exact requirements and deliver a superior end product.
<h2>Continuous belt freeze dryer for gentle handling of delicate product</h2>
The Devex continuous vacuum belt freeze dryer is the ideal solution for continuous freeze drying of granulates. It allows gentle batch feeding and discharge via vacuum sluices to preserve product quality and minimize mechanical handling - perfect for delicate products where maximum retention of aroma, taste and colour is vital such as coffee products, pharmaceuticals, fruits and herbs.

A bespoke Devex freeze drying plant can handle the full product cycle: foaming, freezing, granulation, sieving, sublimation inside the belt dryer, ice condensation, heating system and high-vacuum technology.

Continuous belt freeze dryer

The production of high-quality biltong and similar dried meat products can pose problems with maintaining product quality, as well as the high energy cost associated with traditional drying solutions. A cutting-edge closed-loop system can not only deliver significant savings in energy costs but can also deliver superior product quality thanks to more efficient, lower temperature operation.


<h2>Standalone cabinet dryer for biltong and dried meat products</h2>
The WRH100G cabinet dryer from IKE is suitable for drying batches of 15 to 100kg of product using heat pump technology.

Warm, dry air enters at the bottom of the cabinet, and warm moist air exits at the top, where it is passed to the heat exchange unit. There is no cross-contamination between products, so different items can be dried at the same time. The closed-loop heat exchange system means there is no moisture in the cabinet to condense and drip, another problem with traditional solutions.

Featuring 15 shelves, the operation of the unit is simple thanks to touchscreen control. Set target temperature and humidity level and the machine will operate until the targets are met. There is no risk of over-drying the product, and quality is maintained from batch to batch. No other external connections are required - simply plug into a standard 220v supply.

By avoiding the use of traditional electric drying methods, the WRH100G provides energy savings of up to 80%.

All stainless-steel exterior construction means the WRH100G is easy to clean, and sturdy wheels enable to easy move it around, maximising your use of space. 15 open-mesh shelves mean there is no requirement for the manual turning of the product during the drying cycle. Alternatively, the product can be suspended in the cabinet.

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Industrial drying cabinet

Dried fruits are popular both as food in themselves and as ingredients. Traditional drying techniques using electric warm air circulating dryers are inefficient and inflexible, often resulting in suboptimal product quality. A modern, temperature-variable drying solution that uses closed-loop heat pumps to dehumidify the fruit can give huge gains in product quality while cutting energy expenditure significantly.


<h2>Standalone variable temperature fruit drying cabinet</h2>
The WRH100T cabinet fruit dryer machine from IKE is ideal for drying fruit in batches from 15 to 100kg. This food dehydrator makes use of heat pump technology to achieve high efficiency and even drying. Thanks to its variable temperature control it can perfectly dry fruits of all kinds, including the most delicate and even dehydrated vegetables.

Featuring open-mesh drying shelves, the WRH100T dehydration machine is operated using an intuitive and ergonomic touch screen interface and the unit only requires connection to a standard 220v electricity supply for operation. The operator needs only to fill the units' food trays with fruit, then set the target temperature and humidity level and the machine will then continuously operate until the required parameters are met. This automatic operation removes the need for constant oversight of the fruit drying process, and there’s no risk of over-drying. This allows the highest quality to be maintained from batch to batch.

With an all stainless steel exterior and robust wheels, the WRH100G food drying machine is strong, simple to keep clean, and mobile, making the most efficient use of the space available. Warm, dry air enters at the bottom of the cabinet, and warm moist air exits at the top, where it is passed to the heat exchange and dehumidifying unit. Excess moisture is passed through an external outlet where it can be collected. Because the humidity in the cabinet is never great enough to allow condensation, there is no risk of dripping and possible contamination, as exists with traditional dryers.

Industrial dehydration machine

The blending process is critical to the flavor quality of tea. But the physical impact of the mixing mechanism on the tea leaves risks downgrading their aromatic profiles. Internal friction breaks the leaves and produces dust, causing the unwanted release of volatile compounds.


<h2>Protect the leaves during tea mixing</h2>
The gentle tea mixer machine from Lindor applies gentle blending to protect the leaves from breakage. The mixing drum is designed with non-movable blades that scoop up the tea leaves and let them flow under gravitational force.

The absence of paddles or ribbons found in conventional technology means that the delicate material is not subjected to collision with tooltips. This technique protects the integrity of the leaf size and shape, conserving its natural flavor.

Further aromatization is possible with an optional liquid injection system or by mixing in flavor granulates. Alternatively, the two methods can be combined.

Mixing under gravity facilitates short mixing times for homogeneous blending, including tea leaves with complex shapes.

The gentle tea mixer comes in batch capacities ranging from 10 to 25,000 liters and integrates with other equipment, including sieves, bag filling stations, metal detectors, and magnets.

Gentle mixer for tea blending

Lindor is a supplier of special mixers, coaters, impregnators and vacuum dryers for powders or granulate - especially those that are sensitive and require gentle treatment. Lindor's gentle touch technology can be applied by producers in the food, fine chemicals &amp; special plastics, as well as pharmaceutical industries.

From the rolling hills of Scotland to the tranquil gardens of Asia… What could a glass of whiskey and a cup of tea possibly have in common?

Single malt whiskey and single crop tea both rely on the uniqueness of their single ingredient - malted barley from a single distillery and tea leaves from a single plantation. However, when tea was introduced to Europe by means of traders, tea producers started to blend tea leaves from different plantations to suit the taste of Europeans.

When making blended tea, in addition to keeping the taste as consistent as possible in every batch, it's important not to break the tea leaves to avoid changes in color, flavor, taste, and the creation of tea dust.


<h2><em>“Keeping the integrity of the tea leaves is our mantra”</em></h2>
This is what Bastiaan Soeteman, Managing Director at Lindor, told us when we broached the topic of tea blending.

“<em>Tea blends can contain up to 35 different teas. Tea leaves can be very small, like powder, and very long, like pine needles – up to 2 – 3 cm</em>,” Bastiaan explains.

To balance out the characteristics of different teas, you can play with different factors, such as the rotation speed, the time, or the sequence in which the ingredients are put into the blender. For instance, some herbs and flower petals are added at the very last moment because they are very delicate.
<h2>Just like gravity pulling you down. There’s no force, it’s just a movement.</h2>
Everything in life is a metaphor, so Bastiaan gives us one.

“<em>When making a cake, you have to mix the ingredients in a bowl using a spoon and your arm’s power. After stirring for a while, the friction generated between the spoon and the mixture forces you to push harder and harder. This might damage the mixture.</em>”

The same happens during tea blending. Using a paddle or a ribbon mixer, the frictional force between the leaves and the paddle’s edge might break the leaves.

Lindor’s blender has no paddles or ribbons, which represent the <em>spoon</em> in Bastiaan’s metaphor. Instead of using a tool to mix the leaves, the whole drum is rotated – the <em>bowl</em> in the kitchen metaphor.

“<em>We use very little power... gravity is doing the rest. The only thing that we do is lift up some tea leaves and let them roll out of the scoops continuously. Our electric motor rotates the drum with 20% of the power of a traditional mixer</em>,” Bastiaan concludes.

In this way, the amount of tea dust created is negligible. Damaging the leaves means throwing away valuable raw material, which has undergone so many processes before arriving in Europe.

So why use force when you can make use of gravity?

Down with gravity – how to make tea blends without breaking the leaves

Food

A beverage is any kind of liquid or drink, usually other than water, made for human consumption. Beverages are further classified into two categories: alcoholic beverages and non-alcoholic beverages. Alcoholic beverages refer to liquids that contain 1% to 75% of liquor and are produced by fermentation such as wine, beer, or distillation such as vodka, rum, tequila. Non-alcoholic beverages are drinks that don’t have any liquor such as tea, coffee, fruit juices, soft drinks, and carbonated beverages. They can be produced premix or postmix, depending on the setup of your production line.

Beverages

Our food chain starts in the soil, growing crops and livestock. But between the fields and the stores, there is a line of industrial food processing equipment. Processes may be as minimalistic as cleaning fruit and as complex as homogenizing milk alternatives made from pressed legumes. In each case, processing technology is an important link in the food production chain.

Find production technology for Tea drying, and connect directly with leading machine manufacturers worldwide

Tea drying Equipment

Which tea drying equipment do you need?

Continuous paddle dryer

Continuous belt freeze dryer

Industrial drying cabinet

Industrial dehydration machine

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