> Why? This just sounds like planned obsolescence. It's a requirement of the volume calibration - beer glasses used for commercial purposes are classified as c

> Why? This just sounds like planned obsolescence. It's a requirement of the volume calibration - beer glasses used for commercial purposes are classified as certified measurement devices under EU law, you have to print on the glass the year in which the required stamp got affixed [1]. This serves to provide the customer with a way to check if they're being sold the correct amount of beer. Fun fact, this was a massive issue for stone mugs and led to a lot of confusion when the regulation became enforced [2]. [1] https://www.agme.de/?qs_servlet=downloadIxServlet&rq_RecId=3432&qs_fileId=73&qs_lastModified=1464943945927&qs_fileControl=5C3C3DD3613D27081F9BF777B553B2A8298EF50F https://www.agme.de/?qs_servlet=downloadIxServlet&rq_RecId=3... [2] https://germany.representation.ec.europa.eu/news/klarstellung-eu-verbietet-nicht-den-bierausschank-aus-steinkrugen-2017-03-28_de https://germany.representation.ec.europa.eu/news/klarstellun...