Has anyone else been having problems with opening tins? We found it
really hard to open tins with a previous tin opener. So I got an old
fashioned butterfly one and this didn't work very well, so bought
another from Asda (35p) and found this didn't work. Finally went to
John Lewis and paid for an expensive one (£7) and have now found this
doesn't work properly.

This made me think that maybe the manufacture of tinned goods has
changed slightly.