Perfect turbidity measurement in beer

Turbidity is defined as “expression of the optical property that causes light to be scattered and absorbed rather than transmitted in straight lines through the sample.” In other words, turbidity is the measurement of relative sample clarity. Turbidity is measured by comparison to standard solutions eg. Formazin. In practice, turbidity measurement is done in cuvettes. However, the measurement can also be executed in bottles of various sizes. Different bottle holders can easily cover the most commonly used bottle diameters. About 25 years ago it was Vos Instrumenten who developed the VOS 4000 Hazemeter. This apparatus was the widely recognized reference for measuring turbidity in beer. Distributed all over the world, many well-established breweries have been using this VOS 4000 Hazemeter.