The
lid visually indicates whether or not it is securely attached to the
takeaway cup, placing coffee house owners and consumers at ease regarding
the safety concerns of hot coffee spillages.
Your
lid is correctly fitted if there is a complete brown ring around the
lid and incorrectly fitted if there is a broken ring around the lid.
When
a lid has not been applied correctly a broken ring appears around
the rim of the lid. The part where it is broken is the part of the
lid that is not engaging the cup correctly. It is this part of the
lid that has to be adjusted.