Interesting, thanks for the information especially on Eastern Germany. I'm not super familiar with many apple/pear varieties but worked as quality control for a pear packaging factory for a summer. The fruit are basically picked hard and processed/packaged the same day. The most common defects are punctures from the short stems and then maybe bruising. I think most defective pears are then used for canning or similar products.

They do ripen really quick and turn from hard green to yellow/brown in a few days. A perfect pear is so good..