It's absolutely routinely done and there's a lot of PCR glass used, but there's also a significant amount of cleaning needed. I'm not involved in the industry b

It's absolutely routinely done and there's a lot of PCR glass used, but there's also a significant amount of cleaning needed. I'm not involved in the industry beyond past interest in glasswork, but I wouldn't be surprised if there were packaging changes happening all along that improve the simplify cleaning - eg chemically soluble ink printing on containers instead of glued paper or composite labels.