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Some problems of traditional pop can has existed for long.
First,It's unhygienic to let our mouth touch the can directly due to unseen bacteria.Second,open up the can is not easy.Third,one type of the pull-tab is inconvenient to recycle.fourth,the other type of pull-tab is immersed into the drink while opening and drinking,which is unhygienic too.
The hygienic pop can design solves these problems:a straw is placed into the can.When opening, the straw floats upwards,which is hygienic to drink with instead of mouth touching the can.What's more,the new pull-tab design can be easily spun and fixed to the other side,solving the recycle problem.
Beijing Institute of Technology