Quick answer
Preheat or prechill your Climate+ Tumbler with hot or cold water for a few minutes before filling, then seal the lid and avoid leaving it in direct sun. Wash by hand with mild soap and let it air dry fully to protect the vacuum insulation.
Tumbler
Why the Climate+ Tumbler behaves differently
The Climate+ Tumbler is MiiR's most planet-forward tumbler, made with 25% less stainless steel than traditional tumblers and zero virgin plastic. That lighter build still uses vacuum insulation, so the same care rules apply, but the material reduction means you should treat the body with a bit more attention than a heavier tumbler. Avoid dropping it on hard surfaces and never use abrasive scrubbers, since scratches can affect both appearance and how well the vacuum layer performs over time.
Daily habits that protect temperature retention
Temperature retention depends as much on how you use the tumbler as on the insulation itself. Fill it close to the top so there is less air space, which slows heat exchange. Keep the lid on between sips, and if you are carrying it in a bag, use a sleeve or pocket to avoid knocks. On hot days, store it in the shade rather than a hot car cup holder, because external heat forces the vacuum layer to work harder.
Cleaning steps that do not harm the vacuum
Hand washing is the safest routine for any vacuum-insulated tumbler, including the Climate+ Tumbler. Use warm water, mild dish soap, and a soft bottle brush. Rinse thoroughly and let all parts air dry separately before reassembling. If you use the tumbler for coffee or tea, a weekly deeper clean with a mix of baking soda and warm water helps remove oils and odors without scratching the interior.
bottle brush
Step-by-step routine for Climate+ Tumbler care
- Prechill or preheat before filling: Fill the tumbler with cold water and let it sit for 2-3 minutes, or use hot water if you are filling with a hot drink. Empty it before adding your beverage. Checkpoint: the tumbler wall should feel cool or warm to the touch, indicating the vacuum layer is active.
- Fill close to the rim and seal the lid: Leave about half an inch of space, then press the lid on firmly. Less air inside means slower temperature exchange. Common mistake: overfilling can make the lid hard to seal and cause leaks.
- Hand wash after each use: Use warm water, mild soap, and a soft brush. Rinse all parts and let them air dry completely before putting the tumbler back together. Avoid the dishwasher, which can degrade the vacuum seal over time.
- Store empty and open: Keep the lid off when the tumbler is not in use so air can circulate and no odors get trapped inside. Checkpoint: a dry, open tumbler stays fresher between uses.
Product facts
- Climate+ Tumbler: The Climate+ Tumbler is 16oz and made with 25% less stainless steel than traditional tumblers and zero virgin plastic. The lighter material still needs gentle handling; avoid abrasive cleaners and hard drops to keep the vacuum insulation working.
