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Thermoflask FAQs

Bottle Questions

How long do ThermoFlask bottles keep liquids hot and cold?

How do I clean my ThermoFlask bottle and lid?

My bottle says handwash only on the bottom. Is it dishwasher safe?

Can I put carbonated beverages in my ThermoFlask bottle?

What size ThermoFlask bottles fit in a cup holder?

It looks like my ThermoFlask bottle may have rust. Is this normal and how do I fix it?

Product Use Warnings

Shipping

What’s Your Shipping Policy?

What's Your Return Policy?

Manufacturing

What are ThermoFlask bottles made of?

Where are Thermoflask bottles manufactured?