Quick answer
Caring for your Kelso Tumbler 15 oz 2-Pack is straightforward: rinse after each use, wash with mild soap and warm water, and let all parts dry completely before reassembling to keep the silicone valve working and prevent mold.
Why proper care matters for the Kelso Tumbler
The Kelso Tumbler's leak-resistant design relies on a silicone sipper spout with a built-in valve. Food residue or improper drying can cause the valve to stick or develop odors, reducing the tumbler's convenience for car rides, park days, or daycare.
Because the tumbler is not insulated, there is no vacuum seal to protect — so cleaning is simpler, but you still need to pay attention to the spout mechanism and lid seal to keep it leak-free.
Step-by-step care routine
- Rinse immediately after use: Empty any leftover liquid and rinse the tumbler and lid with cool or warm water. This prevents milk, juice, or sticky drinks from drying and clogging the valve. A quick rinse now saves you from scrubbing later.
- Wash with mild soap and warm water: Use a soft sponge and dish soap to clean the cup body, lid, and spout. Pay extra attention to the silicone valve area — gently squeeze the spout to allow soapy water through, then rinse thoroughly. Avoid abrasive scrubbers that can scratch the exterior. If the spout feels sticky, soak the lid in warm soapy water for 5 minutes before rinsing.
- Dry all parts completely before reassembling: Shake off excess water and let the cup, lid, and spout air-dry upside down on a clean dish rack. Do not reassemble while any part is still wet — trapped moisture can cause mold or mildew inside the valve mechanism. A common mistake is putting the lid back on a damp tumbler; always wait until everything is bone-dry.
- Store with the lid off: Keep the tumbler and lid separate when not in use. Storing them assembled traps air and moisture, which can lead to odors. If you stack multiple tumblers, place a paper towel between them to prevent scratches. For the 2-pack, store both lids off and the cups nested or side by side.
- Check the silicone valve periodically: Every few weeks, inspect the spout valve for cracks, stretching, or debris. If the valve becomes loose or damaged, the tumbler may leak. The silicone is durable but can wear over time with heavy use or high-heat dishwashing. Replacements are not sold separately, so handle the spout gently to extend its life.
Product facts
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Kelso Tumbler, 15 oz. (2 Pack): The silicone sipper spout has a built-in valve that stops water from flowing when no one is drinking, so it's perfect for the car, park days, daycare, or home. This valve is the key to the tumbler's leak resistance — keeping it clean and dry ensures it continues to work properly.
Kelso Tumbler, 15 oz. (2 Pack)
