[For stopper unit]
Have you pressed the close button with the body tilted? After pouring the beverage, place the body in an upright position, wait for 2 to 3 seconds, and then press the close button. Click here to see how to use the stopper unit.
[For stopper unit]
Have you closed the cup with the open button on the inner stopper pressed? Press the close button before closing the cup. Click here to see how to use the stopper unit.
When you carry the product in a bicycle basket, bag, or similar place and it is subjected to vibration or impact, or is squeezed by other items being carried, there is a risk that the stopper part may loosen and the lid may come off, resulting in leakage.
Is there any damage to the lid or spout or stopper unit? These parts are consumable parts. Please purchase and replace them. Click here to purchase consumable parts.
Was a dishwasher/dryer, a dish dryer, or similar equipment used or was this product boiled? (Parts other than the inner stopper of the stopper unit can be washed in a dishwasher/dryer.) Clean this product correctly. Click here to see cleaning instructions.
Was the product dropped or exposed to excessive impacts?
There are cases when the pressure inside the body decreases, making it difficult to open the lid. If this occurs, loosen the stopper part and then retighten it.
[For stopper unit] The open button is stuck.
Have you poured too much beverage into the bottle? Without pressing down too hard, remove the inner stopper, and then pour out a small amount of the beverage.
If you pour boiling water into the bottle and shake it, the open button may become stiff, making it difficult to press. Loosen the inner stopper, press the open button, and then close the inner stopper again.
[For stopper unit] You hear a hissing sound when you press the open button.
This is the sound of air escaping and is not abnormal.
It does not keep beverages warm (cool).
Was the product dropped or exposed to excessive impacts?
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 of beverage is small, full heat (cold) retention performance may not be obtained.
In harsh environments such as cold regions or 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 or stopper part or gasket or stopper unit.
When using the product for the first time, there may be a particular odor coming from the materials. Refer to “Before the First Use” and perform cleaning. Click here before the first use.
Water droplets form on the stopper part or stopper unit.
Due to the structure of the product, condensation may occur if cold beverages are put in it, generating water droplets on the stopper part or stopper unit.
There is a rattling sound when the product is shaken.
There may be a sound caused by rubbing of a part of the metal foil used inside the body to increase the heat (cold) retention effects. However, this does not signify 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.