How to open the tin lid cool oil.
With a pair of scissors, pliers to clamp the box slightly a little flat, and then use the thin blade flat down cover reduction, make the air enter the box, can be opened normally.
You can use toilet paper on the cool oil dry, and gently with the teeth, there will be a small deformation, it will loose a lot, you can easily open it.
Can not open, mainly due to long time, internal and external pressure imbalance caused by..
