To stab or not to stab? Guidelines on pack openability should helpsolve the problem

摘要

I was sitting at my desk last month trying to get into a bottle of orange juice that I'd bought for my breakfast at a local baker. It was a PET bottle, 5 00ml as I remember, with a plastic lid and a seal that, for the life of me, I could not get off. In the end, I resorted to stabbing it with a fork that I keep in my desk drawer for lunch. I It made me think: if I can't open this -and with perhaps 40 years of working life ahead of me, I like to think I fall into the 'young and healthy' category - what hope for an older person, perhaps with weaker muscles or arthritis? Openability of