Those press tools appear to have been made from some something other than steel. (Maybe aluminum or zinc, given the cheese-like results with only ~10 tons.) H

Those press tools appear to have been made from some something other than steel. (Maybe aluminum or zinc, given the cheese-like results with only ~10 tons.) Here's the OG HPC crushing a Prince Rupert drop with a hydraulic press and steel tools: https://www.youtube.com/watch?v=OCJwHrvutGk https://www.youtube.com/watch?v=OCJwHrvutGk At 3:20, the deformation of the tools is shown after they have put 29 tons onto a Prince Rupert drop: There's a good dent, but not like they were made from Mozzarella. (Later in the video are more demonstrations, peaking at around 68 tons, that also do not turn the press tools into cheese.)