Help Center

Thermoflask FAQs

Bottle Questions

How long do ThermoFlask bottles keep liquids hot and cold?

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

What size ThermoFlask bottles fit in a cup holder?

How do I clean my ThermoFlask bottle and lid?

Can I put carbonated beverages in my ThermoFlask bottle?

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

Product Use Warnings


What’s Your Shipping Policy?

What's Your Return Policy?


What are ThermoFlask bottles made of?

Where are Thermoflask bottles manufactured?

Custom/ Bulk Orders

Do you offer Bulk or Corporate discounts?

Which products are available for customization?

Do you offer samples?

How much is shipping for a bulk order in the USA?

Do you accept W9/ Tax Exemption certificates?

Which payment methods are accepted for custom and bulk orders?

Can I cancel or return my order?

How do Shop Pay installments work?

How do I pay with Shop Pay Installments?

What are the spending parameters?

Does Shop Pay installments impact my credit score?

What are the options to pay in Shop Pay installments?

Which payment methods are accepted if I use the option to pay in Shop Pay installments?

How do I manage my payments for Shop Pay installments?

Are there late fees when using Shop Pay?

What happens if I pay with Shop Pay installments and then return items or cancel my order?

Have more questions about Shop Pay?