Description
Two BWT modules working perfectly together for performance at the very highest level
BWT bestbarista ROC COFFEE
With precise remineralization focusing on magnesium and silicate, BWT bestbarista COFFEE ensures optimum coffee indulgence.
Through innovative combination with reverse osmosis technology (BWT bestaqua MEMBRANE), the water is freed from unwanted substances and tailored perfectly to coffee preparation.
- Mineralization unique in the world
- Regardless of local raw water quality
- Typical capacity > 2,000 L
BWT bestaqua MEMBRANE
The BWT bestaqua MEBRANE is one of the most efficient reverse osmosis membranes in the world. It really comes into its own when the demand for pure water and the load of unwanted substances are high. Highly efficient, robust and durable, it creates the best conditions for refined coffee of standardized quality.
- Typical capacity 120 L/h
- High salt separation rate
- Robust, durable, efficient
Product details
BWT bestbarista ROC COFFEE is a totally new level in the evolution of water optimization for coffee and all types of hot beverage. Whatever the local water hardness, the system optimizes the best, balanced water for coffee preparation. In the first stage, reverse osmosis technology removes almost all minerals and unwanted substances from the local raw water.
In the second stage, minerals are added to improve the extraction process in the best possible way. This controlled process adjusts the mineral content of the water and the quality of the minerals to perfection. Developed by BWT, the unique mineral mix focusing on magnesium and silicate ensures a balanced, globally standardized quality for the coffee water.
How the reverse osmosis works
Filter capacity
Functional Elements

Technical details
| KEY DATA | |
| Permeate capacity | 2 l/min = 120 l/h |
| Salt retention rate | > 97% |
| Permeate yield | approx. 50 % |
| OPERATING CONDITIONS | |
| Feed water flow rate, min. | 4.2 l/min = 250 l/h |
| Concentrate flow rate | approx. 2.0 l/min = 120 l/h |
| Feed water pressure | 0.15-0.4 MPa = 1.5-4 bar |
| Feed water temperature | 5-30°C |
| Ambient temperature | 5-40°C |
| POWER | |
| Power supply |
220~240 V/ 50~60 Hz/ 10 A |
| Equipment fuse | T1.25AL250V |
| Power consumption | 200W, Standby <3W |
| Equipment connection | IEC-320 |
| Cold appliance connection cable |
1,8m, CEE 7/4, IEC-320 |
| Protection class | IP 21 |
| FEED AND DRAINAGE LINES | |
| Feed water | M ¾" |
| Permeate | M ⅜" |
| Concentrate | John Guest 8 mm |
| External tank | John Guest 8 mm |
| DIMENSIONS AND WEIGHT | |
| Dimensions (W x D x H) | 277 x 297 x 505 mm |
| Weight | 17.7 kg |
| ORDER NUMBER | |
| BWT bestbarista 14 ROC COFFEE |
125632136 |
| BWT bestbarista 14 Coffee |
125632138 |
| BWT bestaqua 14 Membrane | RS00Y61A00 |























