The highest CAN application (highest yield) produced the greatest stalk diameter, but regarding the stem length (Table 2 f), which is important for the classification, this application produced with in the mean 18,5 mm (1/2 of cap diameter) a comparatively low stem length (Table 2 g).
According to the Commission Regulation the maximum stem length (closed, veiled and open mushrooms) must not exceed 2/3 of the cap diameter, when the mushrooms are uncut and 1/2, when the mushrooms are cut (EC, 2002).
As in the mean the stalk length of the highest CAN application did not exceed 1/2 of the cap diameter, only very few stalk scraps will be obtained, even if the stalks will be trimmed before the mushrooms are marketed.