FAQ
Frequently Asked Questions about Straw Mug
About Products
- What is the recommended age for starting this mug?
- The recommended age is from 7 to 8 months, when the baby is accustomed to weaning.
- The mug leaks, what should I do?
- Please check the following:
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● Are there any scratches or dents on each part?
Straws and rubber seals are consumables. If there's any sign of deterioration, please replace them. - ● Is the straw cap securely fastened until it "clicks"?
- ● Are the bottle and cap tightened all the way?
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● Are the straw and rubber seal correctly installed? Is their orientation and position correct?
Is their orientation and position correct?
Is anything floating or improperly seated?
Please ensure the straw tube is firmly set all the way to its "neck" and the rubber seal is firmly set all the way in until there are no gaps.
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● Are there any scratches or dents on each part?
- The cover hits the child in the face when he drinks.
- Is the cover fully open? The cover can be fully opened and secured.
- When the lid is opened, the drink sprays out from the mouth.
- Straw mugs are airtight, and changes in temperature or air pressure can increase the pressure inside the cup, which can push the drink out of the straw. If the mug is knocked over or carried, the contents will spill.
〈 Examples of cases where reflux is likely to occur 〉- ● When hot or cold drinks are added.
- ● If a drink with internal pressure, such as a carbonated beverage, is added.
- ● When atmospheric pressure changes, such as on board an airplane or at high altitudes.
- I tried to strap the handle and lower it as is, but could not do so.200ml
- Forcibly lowering the handle with the handle strap in place may cause damage. Please be careful.
- Is it possible to purchase each part separately?
- Straws and rubber seals are available for purchase separately.
200ml You can purchase from the following page:
【Exclusive to 200ml mug】Circus Straw & Seal replacement set- ※Plastic parts such as lids are not sold separately.
- What is the capacity?
- Please check the following:
200ml It holds up to 200ml.
There are 100ml, 150ml, and 200ml memory on the inside of the bottle. (Approximate) - What materials is it made of?
- Please check the following:
200ml - ● Bottle, Handle Cap:Polypropylene
- ● Mouthpiece, Straw Tube:Silicone rubber
- ● Rubber Seal:Thermoplastic elastomer
- ※ Handle Cap contain some metal parts.
- ※ For more details, please refer to How to Use.
- Is it BPA-free?
- Yes, all plastic parts are BPA-free.
How to Use
- Please tell me about cleaning and disinfection methods.
- After use, remove all parts and carefully wash every corner of each part with detergent. Gently wash the straw and gasket by hand. For disinfection methods, please refer to the following:

Part Name Material Heat Resistance
TemperatureCold Resistance
TemperatureDisinfection Method Boiling Chemical Solution Microwave Bottle Polypropylene 140℃ -20℃ ○ ○ ○ Handle Cap Polypropylene 140℃ -20℃ ○ × × Mouthpiece,
Straw TubeSilicone Rubber 130℃ -50℃ ○ ○ ○ Rubber Seal Thermoplastic Elastomer 120℃ -40℃ ○ ○ ○ - ※ Handle caps contain metal parts, so absolutely do not disinfect them with microwave or chemical solutions.
- Why are the Handle Cap not to be disinfected with chemicals or in a microwave oven?
- A metal shaft pin is used for the button on the Handle Cap. Please avoid chemical disinfection as it may cause rust. Also, please do not sterilize in a microwave oven, as the metal parts will melt.
- When should I replace the Mouthpiece and Rubber Seal?
- As the Mouthpiece and Rubber Seal age, they lose elasticity and tear easily. Also, parts may not adhere well to each other, causing leaks. Before use, check for cracks, scratches, or other abnormalities. If any abnormality is found, discontinue use immediately and replace the part with a new one.
- ※ Depending on the condition of the child's teeth, biting too hard may cause tearing.
