The far greatest part of the economically meaningful quality variation in p
ork is connected with the PSE status whose direct characteristics (pale col
our, wateriness) can hardly be determined in the slaughter-house practice.
Therefore it is advisable to use alternative criteria which can be measured
fast and with less expense. With this in mind pH value, passive-electrical
properties (electrical conductivity, impedance) and colour parameters (ref
lection) measurable with probe instruments are most important. To record th
em in a sensible way, requires the consideration of post mortal changes in
the muscle tissue and the consequences arising from this for the choice of
suitable measurement times. In addition, specific features at the different
methods with regard to localization, treatment of the material to be inves
tigated and the respective equipment have to be noticed. In this paper sugg
estions on the choice of methods and a standardized procedure will be deriv
ed.