ISO 6668:2008 PDF

Scope: This International Standard specifies a method for the roasting of green coffee, grinding the roasted coffee, and the preparation -- from the ground coffee -- of a beverage to be used in sensory analysis. The sensory analysis carried out following this preparation may be used to determine the acceptance or rejection of a shipment of coffee, subject to agreement between the parties concerned. Generally, the sample will require a light roast for assessment of defects, and a medium roast for assessment of flavour and colour. A beverage prepared in accordance with this International Standard can be used not only for purposes of quality control, but also for purposes of comparative assessment of different samples, in which case an identical procedure can be followed for each of the samples.

ISO 6668:2008 Referenced Document

ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 4072 Green coffee in bags; Sampling
ISO 565 Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings

2008 ISO 6668:2008 Green coffee - Preparation of samples for use in sensory analysis
2000 ISO 6668:1991/Cor 1:2000 Green coffee - Preparation of samples for use in sensory analysis; Technical Corrigendum 1
1991 ISO 6668:1991 Green coffee; preparation of samples for use in sensory analysis