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  1. Applications
  2. Storage and logistics dehumidification
  3. Storing raw tobacco

Preserving the aroma and quality: Storing raw tobacco

Dehumidifiers are used in raw tobacco warehouses for an optimum protection of the goods.

Carrying on a tradition

The refinement of raw tobacco is considered a fine art. Far from the major tobacco industry smaller factories produce special mixtures with highly diverse flavours. But here, too, the firms usually have to purchase the raw tobacco, coming from many parts of the world, by container load. And since in most cases the product is not processed all at once, the tobacco leaves have to be stored away carefully. This is the only way to preserve the outstanding quality and special flavours. Professional air conditioning in the storage facility can even be of benefit to additional ripening and aroma development. Such optimum climate conditions are generated by employing the Trotec industrial dryers of the DH series.

The noticeable fall in demand for customary cigarettes opposes the still coveted premium cigars and special types of tobacco: They are a status symbol and regarded as tobacco use extraordinaire. The most noted and sought-after cigars still come from Cuba, Brazil and the Dominican Republic. The tobacco leaves are hand-picked. Then the plants are cured for up to 50 days – placing them by turns in the sunshine or shade. The sub-tropical climate proves advantageous for the aroma development. But there are also special ventilated storehouses. That is where the ripening process sets in, for during storage the moisture content in the leaves is reduced. This curing process is followed by fermentation. During fermentation – which can take several months depending on the variety of tobacco – the aromas develop.

Of course part of the raw tobacco is processed in the producing countries. But it is also shipped for the further processing in our factories. It is imperative to keep up the prudence and tradition of the tobacco manufacturers from the countries of origin – for reasons of quality assurance and to preserve the special tobacco flavour. Since most tobacco manufacturers can purchase the product only by container load, but are unable to process the lot all at once, particular attention needs to be paid to the raw tobacco storage. Unmanufacured tobacco is very delicate and sensitive to changes in the weather. If the humidity level in the storage space is too low, the leaves quickly dry out, begin to crumble and lose their flavour. If the humidity level is too high, there is a danger of mould stains and mildew. Both can eliminate entire stocks in next to no time. Concerning the storage of raw tobacco, manufacturers demonstrate true instinct by employing sophisticated air conditioning systems in their storage facilities. With the industrial dryers of the DH series Trotec guarantees optimum climate conditions for storing unmanufactured tobacco.

Taking action against excessive humidity levels

Cold, dry and well ventilated is what you want in a raw tobacco warehouse. In stationary continuous operation the professional dehumidifiers of the DH series make a good job of ensuring the optimum conditions. The dryers operate on the principle of condensation and guarantee a particularly high dehumidification performance. They are manufactured of hard-wearing high-quality components making them especially low in maintenance and able to provide an optimal dehumidification performance even in aggressive industrial surroundings. Furthermore, the models are extremely economical. The DH industrial dryers are set up in just a few steps and can be adjusted perfectly for every environmental requirement. An additional advantage: Some devices are delivered ready for use, already prepared for wall mounting and optionally available with a condensate pump.

Benefits of Trotec DH dehumidifiers

  • extremely high dehumidification performance
  • closed drying systems
  • reliable continuous operation even in rough conditions
  • fully automatic, low-maintenance operation
  • corrosion-protected design
  • perfectly scalable for all environment requirements
  • reducing energy costs by means of heat recovery or process heat-assisted air heating

The appropriate model for every demand

Whether it is stored in small rooms or large facilities – raw tobacco deserves the best possible storage climate. Our consultants of the Trotec industrial services team will gladly lend their support in planning the necessary capacities and selecting the appropriate models to make sure that every room is equipped with the perfect air-conditioning system.

Further solutions

Upon request, we also produce customized desiccant dehumidifiers as special models

Upon request, we will readily produce tailor-made desiccant dehumidifiers as special models “made in Germany” perfectly geared to your needs, e.g.:

  • TTR industrial desiccant dehumidifiers with hygienic design
  • TTR industrial desiccant dehumidifiers for PWIS-free dry air
  • TTR industrial desiccant dehumidifiers with extremely low dew point

Makes use of the possibility of having special models with tailored components for your individual needs planned, designed and manufactured in close consultation with our specialists.
Click here to find out more ...

Further application examples for air dehumidification

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    The Trotec Group provides different dehumidification solutions – from the condensation dehumidifiers of the DH series to the adsorption dryers of the TTR series. Both are available as mobile and stationary versions. We offer the right dehumidification technology for every depot or dispatch warehouse. Innovative measuring devices and data loggers complete the dehumidification concept for storage...

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  • Dehumidification in fertilizer storage facilities

    The production of hygroscopic materials in the chemical industry requires intuition and sure instincts. After all, the substances love water and readily absorb the moisture contained in the ambient air. And this can have disastrous economic consequences. As it binds water, the material starts sticking together and clumping, and may become unusable in the worst case. One example are fertilizers. If...

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  • Dehumidification in wind turbine component depots

    In the construction phase of a wind turbine, the plant’s components are sometimes stored for months in very large depots such as halls or temporary storage tents prior to assembly. To prevent damage caused by corrosion or frost during storage, a sophisticated system for humidity regulation is necessary.

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  • Dehumidification in drying rooms

    In the production of electronic equipment and semiconductors humidity can lead to electrostatic charge. For this reason, sensitive processing steps are being performed in cleanrooms and drying rooms. The mobile adsorption dryers of the TTR series are ideal for these high requirements during dehumidification.

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  • Dehumidification in ships' holds

    There is only one remedy for mould, microbial contamination and corrosion on cargo and ship: to supply constantly dry air with a humidity suitable for the cargo into the ship’s hold. To achieve reliable results, the dehumidification system must have been planned professionally.

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  • Dehumidification circuit board storages

    When storing printed circuit boards humidity can lead to electrostatic charge and patina formation or corrosion. Particularly suited for dehumidifying the PCB storage space are the mobile adsorption dryers of the TTR series – just as well as for other operating sectors in the electronics and semiconductor production.

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  • Dehumidification dispatch & transport

    In the silo as well as during transport hygroscopic bulk material is endangered by humidity – this holds true for both the chemical and the pharmaceutical industry. Humidity continues to be a problem after production, because the products are mostly packed into damageable cardboard boxes with paper inserts. Therefore, dehumidification also plays a key role for storage, dispatch and transport.

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  • Dry air storage

    The requirements in dry air storage are very much alike in many industries: Bacterial growth on foodstuffs, powders going lumpy, corrosion on metal parts – all can be prevented, when the relative humidity is constantly kept below 50 %. A value of 70 % RH suffices as mould protection. The dehumidifiers of the TTR series along with the matching data loggers represent dehumidification systems which...

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  • Dehumidification in timber yards

    In the past, when storing wood it had been rather a challenge to keep the moisture of furniture wood below the required 9 per cent, for example: If no dehumidifiers are used, seasonal temperature differences and fluctuations in air humidity cause the wood moisture to rise. This considerably affects timber quality and results in problems during processing and even in reject.

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  • Dehumidification in wine cellars

    The different temperatures at which the wines are fermented are usually set by the winemaker via the thermostats integrated in the tanks. But the use of dehumidifiers is still indispensable. If the humidity level is low, particularly red wines can develop in the best way. Furthermore, a drying device is able to fight condensation efficiently. Trotec has a series of high-performance drying devices...

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  • Carpet cleaning – Dehumidification in the drying room

    So the processes of cleaning and drying should be adapted to the individual fibres and material characteristics of the carpeting. As little as an incorrect drying temperature may already cause damage to the material.

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