FAQ's

All MiiR products are constructed of premium, 18/8 (18% chromium, 8% nickel) medical grade stainless steel. Our bottle lids are made of BPA free polypropylene #5, and our press fit lids are made of Eastman Tritan™. Both of these plastics have been tested and neither are known to leach harmful chemicals or present health risks. They carry no bisphenols (BPA, BPS, etc.), estrogenic activity (EA or estrogen leaching) or androgenic activity (AA or testosterone leaching). With the exception of products offered in natural stainless steel, all MiiR products are finished with a durable Hardshell™ powder coating to protect and preserve your product’s appearance.

Though technically dishwasher safe, for the longest term product satisfaction, especially for products with a Hardshell™ powder coat finish and/or custom design or finish, we recommend hand washing your MiiR in hot, soapy water with a long-handled soft bristle brush. Extremely high water temperatures and the rigorous environment of a dishwasher will deteriorate these finishes over time. All MiiR lids are easily hand washed and are also top rack dishwasher safe.

No. Freezing temperatures can damage the insulation properties of your insulated MiiR (and if sealed, the vacuum insulation will prevent the inside from becoming cold anyway). To carry the coldest of contents in your insulated MiiR, simply fill with ice and enjoy.

No. All MiiR products are made of stainless steel and are not safe to put in the microwave.

Our growlers, howlers, pints and cups are all designed to carry carbonated beverages. All other products, including those with twist off, straw and travel lids are not intended for carbonated beverages.

Never use bleach or chlorine. Instead, we recommend one of the following:
• Use an all natural cleaning tablet like Bottle Bright
• Pour a solution of white distilled vinegar and warm water (1:5 ratio) into your MiiR and let soak for 10 minutes
• Create a paste with baking soda and warm water and gently scrub the paste directly onto stains with a soft bristled brush

From time to time you may notice cloudy white spots on your Hardshell™ powder coated MiiR product, particularly after running in the dishwasher (for long term product satisfaction, we recommend hand washing). These come from mineral deposits found in the water your MiiR comes into contact with. To remove, simply boil a small amount of water and carefully pour directly over white spots, and they should clear right up.

Take a look at the rubber gasket on your press fit lid, as it may have become twisted. Adjust as needed until the ridges of the black gasket are facing outward for the entire circumference to create a consistent, airtight seal when pressed into place. For additional assistance, contact us at hello@miir.com or 888-746-5762.

Inside the walls of our insulated products is a tiny piece of welded metal that acts as a moisture trap during the vacuum insulation process of production. Rarely will this piece become dislodged and cause rattling. Though this incident will not affect the overall performance of your product, we’re happy to make it right and get you set you up with a replacement. Contact us at hello@miir.com or 888-746-5762.

Digital gift cards are available for purchase here. To redeem your gift card, fill your cart at MiiR.com and continue to the checkout page. Enter your gift card code where prompted, click “apply” and your subtotal will adjust automatically. MiiR gift cards are also valid at our Flagship store, located at 3400 Stone Way N., Seattle, WA 98103

Fill your cart at MiiR.com, enter in the recipient’s name and shipping address when prompted, and complete your order. We do not offer personalized messages at this time, so we recommend you share shipping information directly with the recipient.

Fill your cart at MiiR.com and continue to the checkout page. Enter your discount code where prompted, click "apply” and your subtotal will adjust automatically.

We ship every order within 1 business day of purchase.

From your account page, click “order history” to view all past orders. Click on the order number for tracking information.

All MiiR products purchased from MiiR.com come with a limited lifetime warranty against manufacturer defects for the life of the product. Please note that normal wear and tear including scratches, dings and other marks are not covered under this warranty. Manufacturer defects include but are not limited to: micro leaks, rough welds and damages sustained prior to first use.

You may return your MiiR in perfect, unused condition for a refund or credit. To initiate a return, please email us at hello@miir.com

If you believe your decorated MiiR product is subject to a manufacturer defect, please email us at hello@miir.com and we will be happy to replace it with blank MiiR product.

On sale and heritage items are final sale and may not be returned.

MiiR offers free shipping within the United States on orders totaling $45 or more, before taxes and discounts.

At this time we offer international shipping to Japan, Australia, New Zealand, UK and Canada. To view a listing of available shipping rates before placing your order, add product(s) to your cart, enter shipping information and proceed to checkout. Please note MiiR is not responsible for duties and taxes your country may charge for importing products. MiiR does not collect or control these fees charged by the freight carrier after you place your order and upon import.

Sales tax will only be applied to your order if shipping to the state of Washington.

Your credit card will be charged at checkout.

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