Tews Elektronik, represented in the UK by Accumen Technology, offers a range of microwave based instruments to accurately measure moisture at all stages of the coffee manufacturing process
Working in close association with Probat, the coffee roasting machine manufacturer, as well as a leading German supermarket chain, Tews Elektronik has proven its non-destructive process to be fast, accurate and independent of colour, says Accumen.
German government regulations, which require manufacturers to produce coffee to a specified moisture content level, have brought about the need to have accurate control over each stage of the manufacturing process.
Tews Elektronik range of instruments is ideally suited to this need.
Tews patented microwave resonance technology based instruments provide the tools to enable the manufacturer to test the product at any stage without the need for pre-processing (eg, grinding).
The moisture content of the whole product is measured, without heating, and the accuracy is not influenced by density or the surface of the product (eg whole beans or ground coffee).
Neumann Coffee successfully uses Tews Elektronik products, primarily the MW3140/MW3150, to measure the moisture in green beans at-line or in the laboratory.
If on-line measurement is required further down the process, either a planar sensor, the MW3260, or an automated by-pass system, the MW3200 can be used.
The MW3200 has also proven to be very effective for measuring both moisture and density of ground coffee prior to packaging in order to optimise filling quality.
