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Tea Industry Humidification

The essential criteria for making quality tea is to minimize the moisture loss from the tea leaves from the rupturing point in the Rotor vane / CTC / CFM's or Rolling tables up to the Dryer feed end. For best quality and productivity it is imperative that this moisture loss is kept at the minimum possible level. The warmer, drier the ambient air of the production area the faster the moisture loss from the tea. Maintaining correct humidity levels, uniformly in the production area like CTC room and CFM room, will arrest the moisture loss from tea which will immensely improve quality.

Drastic moisture loss takes place in the CTC / CFM Rooms because these rooms get extremely hot due to high installed electric load of the machines as well as the solar heat gains through roof and infiltration. Humidity de-creases drastically leading to rapid moisture loss from the tea under process in the CTC and CFM rooms within a very short time if the Humidity functions of increasing the RH and reducing ambient temperature system is not installed in the tea processing area.

In a fermenting room where 90 - 95% RH is required to be maintained, the air is always very near saturation i.e. the dew point temperature. Precision engineered, fully automatic "Hydromist" humidification systems can only maintain the desired conditions without wetting / condensation as experienced with manually operated centrifugal spinning disk humidifiers or semi-central Air Handling Units, commonly used in the tea factories. AHUs which are used to supply humidified air to the fermenting machines or to fermenting rooms, can never give the desired 90-95% RH where it is required. Proper Systematic humidification in tea during the fermentation process allows oxidization to fully occur as the high humidity prevents the tea from losing moisture to the air. If the tea dries then the fermentation process is impaired as oxidization only occurs in the presence of moisture.

By maintaining a more consistent humidity in the rolling, cutting and fermentation areas the liquor of the tea is greatly improved and the amount of low quality refuse tea is reduced by up to 50%, when compared to standard spinning disc humidification systems. This results in a better quality tea allowing the product to command a higher price at market.

Methods of Humidification

By using a "Hydromist" High pressure water humidifier the entire rolling room is kept optimally humidified. The cooling effect from the evaporation of the moisture also helps to control the increase in temperature the tea experiences during this process.

Our Customers like M/s. Woodbriar Group, Valparai & Nilgiris, Tamilnadu, M/s. Harrison Malayalam Ltd, Kerala. M/s. Soongachi Tea factory, M/s. Daspara Tea Factory, M/s. Navbharat Tea Factory, M/s. Camelia Tea Factory, M/s. Uttorayan Tea Factory & M/s. Madhukamal Tea Factory all these in Siliguri, West Bengal. The above mentioned customers have positively commented, "The teas are jet black after the commissioning of the humidification system. There is a vast improvement in the liquors of the tea and an improvement in the density of teas." The "Hydromist" humidifier is fully automatic, with low running costs, no drips or droplets and hygienic, safe operation. This makes it the number one choice for tea applications worldwide.

"Hydromist" Humidification systems have been humidifying industries and air handling systems around the world for over 10 years. Continually developed to incorporate the latest in controls, hygiene and environmentally sound technology, the "Hydromist" is the leading water atomizing humidifier.

"Hydromist" precision engineered misting nozzles have the lowest water consumption for any humidifier. The drip-free nozzles produce sprays of just 5-10p.m and are built to last long. The control panel uses the latest remote digital interface, which can be mounted up to 100m away from the main control unit. The whole system is very easy to install and can run on medium of water like: R.O, D.M or Distilled Water. Regular maintenance is minimal and often comprises of just an annual check, making the "Hydromist" ideal for use in busy industrial environments.

  • Magna Engineers is a world-wide producer, supplier, and integrator of "Hydro Systems" & "Scientific Glass Apparatus" - related products to industries in India and customers throughout the world. Magna's customers include the Public Sector Units, Heavy Engineering Companies, Engineering Procurement & Construction Industries (EPC), Food Processing Industries, Power Plants, Steel Industries, Chemical Industries, Department of Defense and all types of wet process heavy industries. As a supplier and as a trusted strategic partner, we have the intellectual, technological, and financial resources to enable customers to solve problems in high-technological fields.