My brother gave me his 20 Ton bottle jack hydraulic press that he got about 15 years ago. I pre-squashed a beer can and stuck it between the 1" thick cast iron plates that came with the press. I pumped until I started to encounter quite a bit of resistance, then KERPOW! Sparks flew and the halves of both plates went flying in all directions. Luckily none of them hit ME. I think HF is China's way to off us one by one.