How to Clean and Care for Your Stainless Steel Tumbler
By Official Bethesda Gear Store | Bethesda Video Game Merchandise | Published: 2026-10-22
Category: How-to Guides
Keep your game-themed tumbler looking and performing its best with this step-by-step cleaning guide. Learn the right methods for stainless steel mugs and 20oz tumblers.
Quick Answer
Hand wash your stainless steel tumbler with mild dish soap and warm water after each use, and deep-clean weekly with baking soda or white vinegar to remove stains and odors.
Why Care Matters for Your Game Themed Tumbler
Your favorite game themed tumbler—whether it features the Overwatch logo, a Diablo Treasure Goblin, or a World of Warcraft Murloc—is more than a drinkware item. Proper care keeps the vacuum insulation working, preserves the printed artwork, and prevents lingering smells from coffee, tea, or soda.
Stainless steel is durable but not indestructible. Abrasive scrubbers and harsh chemicals can scratch the finish or damage the design. A gentle routine extends the life of your tumbler and keeps every sip fresh.
Common Mistakes to Avoid
Many people toss their tumbler in the dishwasher for convenience. While some stainless steel tumblers are labeled dishwasher-safe, hand washing is always gentler on the exterior print and the vacuum seal. High heat can weaken the insulation over time.
Letting coffee or tea sit for hours creates stubborn stains and odors. Rinse your tumbler soon after use to make cleaning easier.
Step-by-Step Cleaning Guide
- Rinse Immediately After Use: Empty any leftover liquid and rinse the tumbler with warm water. This prevents residue from drying and sticking to the interior. A quick rinse takes 10 seconds and makes deep cleaning much easier.
- Hand Wash with Mild Soap: Fill the tumbler with warm water and a few drops of mild dish soap. Use a soft sponge or bottle brush to scrub the inside, outside, and lid. Pay extra attention to the rim and lid crevices. Never use steel wool or abrasive pads—they can scratch the stainless steel and damage the printed design.
- Deep Clean for Stains and Odors: For coffee or tea stains, add 2 tablespoons of baking soda and fill with hot water. Let it soak for 15 minutes, then scrub with a soft brush. For lingering odors, use a 50/50 mix of white vinegar and water, soak for 10 minutes, then rinse thoroughly. Baking soda is gentle enough for the printed surface while being effective against tough stains.
- Dry Completely Before Storing: After washing, dry the tumbler with a soft cloth and leave the lid off to air dry completely. Moisture trapped inside can cause odors or mildew. Storing the tumbler with the lid on while still damp creates a breeding ground for bacteria.
- Inspect the Lid Seal Regularly: Check the silicone gasket or seal on the lid for cracks or wear. A damaged seal can cause leaks and reduce insulation performance. Replace the lid if needed. A worn seal is the most common reason for a tumbler to stop keeping drinks hot or cold.
Products Featured in This Guide
- Overwatch 18oz Stainless Steel Mug: Vacuum insulation keeps beverages hot for up to 8 hours and cold for up to 24 hours. Proper cleaning preserves the insulation seal so your drink stays the right temperature for your whole gaming session.

Overwatch 18oz Stainless Steel Mug - Diablo Cute But Deadly Treasure Goblin 20oz Tumbler: Stainless steel construction with a spill-resistant lid designed for convenient sipping or straw use. The lid's small crevices need special attention during cleaning to prevent mold and residue buildup.

Diablo Cute But Deadly Treasure Goblin 20oz Tumbler - World of Warcraft Cute But Deadly Murloc 20oz Tumbler: 20-ounce capacity with a Cute But Deadly Murloc design printed on stainless steel. The printed artwork is sensitive to abrasive cleaners, so stick to soft sponges to keep the design vibrant.


