Wet grinding for even better coffee flavor
GEA MicroWet grinding system
GEA has developed a wet grinding technique for adding Roast and Ground (R&G) coffee to coffee extract. The process preserves the coffee flavor and aromas much more effectively than dry grinding and increases your drying capacity. It’s called MicroWet.
The principle is simple: by adding roasted coffee to instant coffee, you can lock in that freshly-ground roasted coffee flavor with 100% yield from the coffee beans. The process also produces an improved mouthfeel. MicroWet from GEA advances this process by using low-temperature, wet grinding that retains aroma and taste more effectively and really sets your products apart from the competition.
The MicroWet grinding process
Micro-ground coffee is added to the feed stream immediately before spray or freeze drying. First the beans are pre-ground then mixed with a portion of the coffee extract stream. This mixture is cooled and double-ground using corundum stone mills to create fine particles (around 20 μm) before it re-joins the main dryer feed.
This wet grinding technique operates at a low temperature so that it captures and preserves both the flavor and aroma of the coffee bean producing an even better tasting product and a unique drinking experience. What’s more, this system increases the overall yield of the coffee beans and increases the capacity of the dryer.
GEA MicroWet grinding system can be integrated within an existing coffee line or work as a standalone system.
Key benefits:
- Wet grinding for an even better tasting product with enhanced mouthfeel
- Increased drying capacity
- 100% yield from the coffee beans added
- Suitable for spray or freeze-dried coffee
| Data for standard execution | |
|---|---|
| Extract inlet feed capacity | Up to receipt of 3,000 kg/h extract |
| Roast coffee dosing | Up to 100 kg/h roast coffee (adjustable) |
| Particle size | D(v, 50) ≈ 20 μm, D(v, 90) ≈ 60 μm |
| Extract with R&G, outlet temperature | ≈ 30°C, max. 40°C |
Downloads
Related Products
GEA Insights
Farmers reap benefits of tailored GEA batch milking system
Automated milking has become the first choice for many modern dairy farms. The benefits are compelling, and with a new batch milking solution from GEA, automated group milking for large dairy herds is possible without the need – and expense – of rebuilding existing facilities.
GEA earns EcoVadis Platinum again – with higher score
GEA has once again earned the highest rating – Platinum – in the globally recognized EcoVadis sustainability assessment. With a score of 92 out of 100, the machinery and plant manufacturer has improved significantly from last year’s result of 82 points. For the second year in a row, GEA ranks among the top one percent of more than 150,000 rated companies across 185 countries.
How Carlsberg keeps 10,000 valves in play
At Carlsberg’s Fredericia brewery, GEA VARIVENT valves are part of a long-game strategy. By reusing core valve bodies, retrofitting actuators and control tops, and planning maintenance around brewing seasons, Carlsberg extends asset life, reduces downtime and supports its ambitious water and sustainability targets.
