you can try to insert it with the non sharp end
generally, you have to insert it hard once or twice to get in
this design is designed so that everyone who drinks carton packaged drinks can simply insert the straw
otherwise, only people with great strength can drink carton packaged drinks
when the tip of the straw is sharp, the contact area with the hole membrane is small, and the hole membrane can be pierced with little force. Too awesome will bring inconvenience to the little power and it will also easily damage the straw because the pressure that the straw can bear is not very big. The straw is broken. How can I drink it. As for the relationship between the contact area and the pressure, it’s like you take a sharpened pencil, put two fingers against both ends of the pen and press it in the middle with the same force. The finger at the top of the pen must be more painful. That is, under the same pressure, the smaller the contact area, the greater the pressure. That’s the truth.
easy to pierce the sealed tin film