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Bucher - Drying technology

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Food powder is the result of drying and pulverizing food. It has been around since the astronauts when out to space. Fruits have a short shelf life and are difficult to preserve due to their high water content.  Fruit powder processing allows you to keep the nutrients of the fruits for a longer time, even off-season.

Fruit powder

Panax ginseng is a medicinal plant with a long history steeped in myth. The term “panax” itself is derived from a Greek word for “panacea” or “cure all”. As ginseng processing technology continues to develop, this famous traditional extract keeps finding new applications.

Ginseng extract

A juicy piece of fruit evokes images of sunlight and warmth. But manufacturers take the reverse route and freeze the harvested products to keep their nutritious mix of minerals, fibers, and vitamins intact. Frozen fruit processing equipment takes temperatures down to around -18 °C, giving the foods an extended lease of life. Many smoothies, jams, and purees we consume are the fruit of frozen labor.

Frozen fruit

Do you know that the famous classical music composer and pianist Ludwig van Beethoven insisted on drinking a cup of coffee made from exactly 60 pieces of coffee beans? Currently, around 50% of the world’s green coffee beans undergo processing through instant coffee manufacturing equipment to produce instant coffee. The process requires roasting, grinding, brewing, and heating to obtain the extract; the coffee extract will either go through a spray drying process or a freeze-drying process.

Instant coffee

Around 1860, American businessman James Spratt made dog biscuits by mixing vegetables, flour, beetroot, and meat. His novel idea came after he noticed dogs eating leftover biscuits from ships in England. Following the commercial success in Britain, he started production in America, and it didn’t take long before others developed their own baked pet food formulas. But the need for more palatability led to experiments beyond the oven. In 1956, extruded dry pet food production made its splash on the market.

Dry pet food

Basically, to make milk powder, you need to remove the water content from the liquid milk and turn it into powder. How to do it? After pasteurizing and homogenizing the milk, milk’s water content is removed through filtration, evaporation, and drying. You have then to cool and sieve it before filling the containers. Here's how you get milk powder.

Milk powder

Instant soup is quite popular due to its ease of use and quick preparation. Products like cup noodles and vegetable soup mixes are some of the examples commonly used by consumers. The instant soup processing equipment is used to dehydrate or dry components of the soup mixture to prolong shelf life and preserve the taste of the vegetables and other components.

Instant soup

After pasteurizing and homogenizing the raw milk, you need to ferment the milk with starter culture until solid curds and liquid whey is formed. Then, the liquid whey goes through a filtration and drying process to turn it into powder. Before sending it to packaging, flavorings are usually added.

Whey protein

Closed system prevents oxidization

Customized system design

High retention of flavors and aromas

Belt drying equipment is used predominantly in the chemical industry but can also be found in other industries. This machinery uses conveyor belts to move raw materials through hot air produced by heat exchangers or by using gas. Belt dryers are suitable for continuous air drying and cooling applications. They use heated air or an inert drying gas to remove the moisture, as the product passes through a drying chamber, on a perforated mesh belt. Belt dryers are suitable for industries producing pelletized or granular, dry bulk products. Drying time and the overall drying process depends on the type of product you aim to make.

Belt dryers

It goes by many names. Freeze drying, lyophilization, or cryodesiccation is a form of dehydration that involves freezing the product to remove its water content and then removing the ice by sublimation – this means going from the solid to the gaseous state without going through the liquid phase. Freeze dryers are widely used in the pharmaceutical industry to increase the shelf life of products such as vaccines and other injectables. Due to their ability to best preserve the flavors, freeze dryers are used for food preservation in the food industry by dehydrating high-value products such as seasonal fruits or coffee. Industrial freeze drying systems are usually comprised of multiple components including vacuum pumps, stainless steel condensers, some form of heating and lastly, a chamber for drying where the materials are placed and processed.

Freeze dryers

Vacuum dryers are typically used to dry fabrics that are sensitive to heat. They find application in the production of active pharmaceutical ingredients, fine chemicals, and food products. Contact us to find out which vacuum dryer is most suitable for your specific application.

Vacuum dryers

Food

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

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

With over one-third of the population consuming it daily in different forms, coffee is one of the most popular processed beverages worldwide. Not only serving as drinks, but coffee is also often regarded as a culture. Coffee manufacturing is a knowledge-intensive industry. Coffee beans from different regions will reveal different tastes, while the level of caffeine could also be different. When it comes to coffee bean processing, the range of roasts varies from light golden brown all the way to dark. The method of tasting coffee differs between countries, habits, and tools.

Coffee

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.

Fruit pulp is a mass of pressed fresh fruit not meant for immediate consumption. Production of fruit pulp avoids wasting food and preserves the flavors and nutrient value of the fruit product. Processed fruit pulp is an ingredient in beverages, sauces, baby foods, jellies, smoothies, and bakery products.

Tradition and manufacturing procedures dictate the distinction between fruit juice, puree, and pulp. Still, naming and labeling are complex and depend on regulations, type of fruit, texture, consistency, preservation methods, and sugar or solid content (measured in Degrees Brix). Depending on your desired output, there are various fruit pulper machines for different stages of production that make the process quicker and more efficient.

Fruit pulp

Herbs have always been shrouded in mystery. The delicate plans produce overpowering bouquets and potent remedies. Herbal extraction technology gets to the core of this mystery and makes bioactive compounds available for a range of applications. Rich in antioxidants, anti-inflammatories, and aromas, herbal extracts are vital ingredients for medicines, foods, cosmetics, and wellness products.

Herbal extracts

Liquid

Ancient civilizations discovered that plant extracts were useful for the treatment of pathologies. The origin of plant extraction cannot be specifically verified, but we can infer that the earliest attempts at plant extraction were more intuitive than scientific. Today, the extraction of compounds is a precise process with plant extraction systems complimenting traditional knowledge.

Plant extracts

The building blocks of matter have driven the imagination of philosophers, scientists, and artists for millennia. But, for manufacturers, these elements have a more concrete existence as powders. Powder processing technology conditions these primary materials to create a vast range of products, from chemicals and foods to pharmaceuticals and ceramics.

Powder

Industrially manufactured soups gained traction in the 19th century when canning was invented and they have been warming us ever since. Whether it’s a classic ready-to-eat canned soup, condensed soup or a dry soup mix, soup manufacturing equipment for mixing, cooking, boiling, or sterilizing caters to every manufacturer’s production requirements.

Soup

<span style="font-weight: 400">Spice manufacturing is one of the world's oldest trading products. The word spice refers to any dried part of a plant other than the leaves and is used for seasoning and food coloring. Spices are made from dried barks, roots, berries, and twigs, while green leafy parts of plants are considered herbs. Well-known examples include cinnamon, chilies, star anise, ginger, garlic salt, turmeric, cumin, or pepper, as well as pre-mixed blends such as Masala, Five-Spice Powder, or Old Bay.</span>

Spices

Process

Continuous

solid

The DryBand system for freeze-drying by Bucher Merk is designed for fragile substances such as fruit powders and plant extracts.

Extracting the essential acids and compounds from fruits and plants is a complex process. But the drying stage can jeopardize their natural

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Vacuum belt dryer for instant drink powders

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