Lavagem Industrial / Articles
7 minutes of reading
2021-12-30 14:30:03
Industrial drying methods prevent the spread of bacteria and ensure the safety of employees and customers. This is how companies choose the right option.
They’re on surfaces, ceilings and food. In kitchen utensils and cardboard boxes. In medicine trays and supermarket cars. Bacteria are everywhere and everyone can contribute to Hygiene and Food Safety. From the most traditional to the most innovative, there are different industrial drying methods with a single aim: to prevent the spread of diseases that endanger the health of employees, customers and the public.
But which drying methods exist and what are the advantages and disadvantages of each one? This is how to choose one that fits your organization.
What drying methods are there?
There are several industrial drying methods. These are the main ones:
To choose the most suitable drying method for your business, it is necessary to consider which materials to dry, because drying food or medicine, for instance, is not the same thing. But it is also necessary to evaluate the drying process, the production chain, the quality requirements of the final product and the available space.
This is how to land on a drying method that fits your organization.
Which drying methods are most suited to each scenario?
Each of the main drying methods has its own advantages and disadvantages and is most suited to a particular type of need.
Convective drying method
Convective drying, with forced hot air, is a simple, effective and economic drying method for industrial and food products.
However, if not properly controlled, this drying method can dehydrate the surface of the product, forming a heterogeneous result. It can also be a slow process depending on the product and drying temperature.
This is the method we chose for MultiWasher, our state-of-the-art industrial washing machine. After years of improvements, we have settled on the best parameters to have total control of drying results. As a result, the MultiWasher can wash and dry anything from boxes to supermarket cars. It is also fast, with results in minutes.
Convective drying is thus one of the most direct ways to improve Food Hygiene and Safety.
Contact drying method
Contact drying is a method that speeds up the natural process. In most industrial applications, it comprises drying a product by contact with heated walls or rotating drums for better homogeneity. But contact drying often means someone has to dry items with towels or cloths manually .
This drying method has several important disadvantages when used on an industrial scale:
Natural drying method
Natural drying, by exposure to sun or air, is the oldest solution and prevents the growth of bacteria. It is a drying method suitable for fruits and vegetables.
However, this method has several important disadvantages:
At Somengil, we believe it is possible to improve quality control through washing. For this, we designed a drying method in a closed cabin environment in which the main parameters (temperature, speed, amount of water and detergent) are adjusted for each load.
Infrared drying method
Infrared drying evaporates water and detergents at high temperatures. It focuses mostly on the surface of the product, much like a toaster. However, this solution should be avoided for products that do not cope well with exposure to high temperatures.
Freeze-drying method
Lyophilization is the technical term for the freeze-drying method. This is a process in which water is removed from a product after it is frozen and placed under a vacuum, allowing the ice to change directly from solid to vapor without passing through a liquid phase. Freeze drying preserves most of the organoleptic properties of food.
However, this technology is relatively slow and expensive. And because it requires a low pressure (vacuum) environment, this drying method is usually used in large production batches, which limit production agility.
Dielectric drying method
Finally, dielectric drying heats the entire volume of a product at the same time. This technology achieves a homogeneous drying and is best suited for the food and medical items to preserve all their properties.
However, dielectric drying makes use of a high energy consumption and is not recommended for many products and materials, including some of the main alternatives to disposable packaging.
When designing an industrial drying method, our priority is the health of the people involved. Improperly drying food, dishes, tools, boxes, trays or other utensils could lead to bacterial growth and endanger the health of workers and customers.
Schedule a webinar or contact our team to learn about our industrial washing solutions.
The Multiwasher is the world’s most innovative industrial washing machine that is increasing sanitation across many industries.
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Due to the technical complexity of Multiwasher's materials, there was a need to organise and place all the information in a single space in order to improve research and productivity.
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