Four experts were involved. One was a butcher familiar with choosing
carcasses in the slaughterhouse according to EUROP classification.
Another was a wholesale butcher who uses the appearance of steaks to
recommend meat purchase in accordance with the customer expectations.
The other two experts were researchers with experience in meat
quality assessment and determinants. Individual interviews with the
experts were conducted to define the grid scheme. The interview form
was built with three main questions: