Drying Systems for Natural Food Colourants
Dry sensitive food colourants quickly, safely and efficiently. Natural food colourants—made from fruits, vegetables and plants—are increasingly used as clean-label alternatives to synthetic dyes. But their high moisture content, poor flow behaviour and thermal sensitivity make drying a challenge that requires smart, specialised technology.
Hosokawa’s DMR flash dryer offers the ideal solution. It combines drying, de-agglomeration and classifying in one compact system—producing lump-free, free-flowing powders in seconds. With precise particle size control and product temperatures below 80 °C, it enables safe, rapid and energy-efficient drying for food colouring applications.
Why Flash Drying Natural Colourants?
Natural food colourants are typically processed as slurries or wet cakes with ~85% moisture and cohesive behaviour. Standard dryers struggle to handle these feeds without degradation or agglomeration. Hosokawa’s DMR flash dryer addresses these challenges in one integrated system:
- Feeds handled: Slurries, pastes, filter cakes, wet powders
- Moisture reduction: From ~85% to <10% in seconds
- Product temperature: Below 80°C—preserving colour and taste
- Output: Fine powder with defined particle size, no agglomerates
How the DMR Flash Dryer Works
The built-in milling section breaks down wet lumps at the feed inlet, eliminating the need for post-drying grinding. Hot air rapidly dries the material while an integrated classifier ensures precise particle size control. The result is a uniform, flowable powder—without damage to sensitive ingredients.
Compared to conventional ring dryers, the DMR system:
- Uses 10–20% less energy per kg of evaporated water
- Requires fewer process steps
- Provides higher yield and better powder quality
Its small footprint and low thermal load make it ideal for natural ingredient manufacturers focused on efficiency, product integrity and sustainability.
Test Before You Invest
Run trials with your own materials on production-scale equipment at our 2,000 m² Test & Process Development Centre in the Netherlands. Our experienced process specialists work with you to determine the optimal process, equipment or plant setup. We offer lab and production-scale trials, each supported by a detailed technical report covering setup, process parameters and performance insights—helping you choose the best solution with confidence.
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Talk to our experts
Let us help you create the optimal drying solution for your natural food colourants. From small-scale pilot setups to complete integrated systems, we’ll work with you to deliver high-performance results—efficiently, safely and reliably.
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Hosokawa Micron B.V. is committed to sustainable and responsible process technology. Our ISO 14001 certification covers key environmental aspects such as air, soil, energy, waste, water, noise and hazardous substances. With an EcoVadis Silver Medal, we rank among the top 3% of EcoVadis-rated companies in the special machinery industry.
