When the product is carried in a bicycle basket, bag, or similar place and is subjected to vibration or impact, or is squeezed by other items being carried, there is a risk that the stopper may loosen and the lid may come off, resulting in leakage.
Are the lid, lid gasket, and stopper gasket not damaged? These parts are consumable parts. Please purchase and replace them. Go here to purchase consumable parts.
Is the stopper securely tightened? Securely tighten the stopper.
Was a dishwasher, dish dryer, or other equipment used, or was the product placed in boiling water? (Except for the gaskets) Perform cleaning correctly. Go here to see cleaning instructions.
The lid does not open.
There are cases when the pressure inside the body decreases, making it difficult to open the lid. If this occurs, loosen the stopper and then retighten it.
It does not keep beverages warm (cool).
Was the product dropped or subjected to strong impact?
When cleaning the product, was strong pressure applied to the inside of the body, or was a metal scrubber or similar item used?
Is there only a small amount of beverage in the product? When the amount is small, sufficient heat (cold) retention performance may not be obtained.
In harsh environments such as cold regions and when the ambient temperature is high, sufficient heat (cold) retention performance may not be obtained.
There is an unusual odor coming from the inside of the body, gaskets, or stopper.
When using for the first time, there may be an unusual odor coming from the materials. Refer to “Before the first use” and perform cleaning. Go here before the first use.
There is a rattling sound when the product is shaken.
There may be a sound caused by rubbing at a part of the metal foil placed inside the body to increase the heat (cold) retention effects, however it is not a problem and does not affect performance.
There are straight or wavy marks on the plastic parts.
These are marks from when the plastic was molded and do not affect quality during use.