The Engineering Behind the Shine
18/8 Stainless Steel Purity
Our silver tumblers are crafted from 304-grade (18/8) stainless steel. This specific alloy contains 18% chromium and 8% nickel, providing exceptional resistance to rust and corrosion. Unlike aluminum bottles that require a lining, our steel is naturally food-safe and will never leach chemicals or metallic tastes into your beverages.
Vacuum Insulation Mastery
The magic lies in the double-wall construction. By sucking the air out from between the two steel walls, we create a vacuum that heat cannot easily traverse. This means your hot coffee stays steaming for 12 hours, and your ice water remains frosty for 24 hours, all without condensation forming on the outside.
Maintenance Guide
- •Dishwasher Safe: Most unpainted silver tumblers are top-rack dishwasher safe (check product label).
- •Polishing: Restore shine easily with a microfiber cloth and a drop of olive oil or steel cleaner.
- •Deep Clean: Use vinegar or baking soda tablets to remove coffee oils and stains from the interior.