Is Double Wall Glass dishwasher safe?
Sometimes — the glass body is dishwasher safe, but the lid and any silicone gasket should be hand washed to prevent seal degradation.
Quick facts
| Dishwasher safe? | Sometimes — Sometimes — with care |
|---|---|
| Category | Drinkware |
| Source | AI-reviewed · manufacturer guidance & material science |
| Last checked | 2026-07-28 |
Why
Double wall glass is made of borosilicate or tempered soda-lime glass. The glass itself is dishwasher safe under normal cycles, but the double-wall construction creates an air gap that can trap moisture if water enters through the rim, leading to mold or fogging over time. The main failure mode is seal degradation: if the glass has a painted logo or decal, dishwasher detergents and heat can cause peeling. The lid, if plastic or silicone, may warp or degrade; silicone gaskets can lose elasticity. Manufacturers like Bodum recommend hand washing to preserve the vacuum seal and appearance, though some brands state top-rack dishwasher safe for the glass only.
How do you wash Double Wall Glass?
- Rinse immediately after use to prevent residue buildup.
- Hand wash the glass body with mild dish soap and a soft sponge.
- For stubborn stains, use a bottle brush or a paste of baking soda and water.
- Clean the lid separately: remove any silicone gasket and wash by hand.
- Rinse thoroughly with warm water to remove all soap.
- Air dry upside down on a drying rack, or dry with a lint-free cloth.
- Reassemble only when all parts are completely dry.
What happens if you put Double Wall Glass in the dishwasher?
If you put a double wall glass in the dishwasher, the glass body will likely survive one wash without visible damage. However, repeated dishwasher cycles can cause the glass to become cloudy or etched due to the alkaline detergent. If the glass has a painted logo or decal, it may start peeling after a few washes. The most common issue is moisture trapped between the walls if water seeps in through the rim; this can lead to permanent fogging or mold growth inside the glass. The lid, if plastic, may warp or crack, and silicone gaskets can lose their seal, causing leaks. Over time, the glass may become more prone to thermal shock if the double-wall integrity is compromised. The damage is often cosmetic initially but can become functional if the vacuum seal is lost.
Frequently asked questions
- Can double wall glass go in the microwave?
- Most double wall glasses are microwave safe if made of borosilicate glass, but avoid microwaving if the glass has metal trim or a metallic decal. Always check the manufacturer's instructions.
- Will the glass break if I pour boiling water into it?
- Borosilicate double wall glass can withstand boiling water, but sudden temperature changes (e.g., from fridge to boiling water) may cause thermal shock. Tempered soda-lime glass is less resistant.
- How do I remove cloudiness from double wall glass?
- Cloudiness from hard water or detergent can be removed by soaking in white vinegar for 30 minutes, then scrubbing with a soft sponge. Avoid abrasive cleaners.
- Can I put the lid in the dishwasher?
- No, the lid (especially if plastic or with a silicone gasket) should be hand washed to prevent warping, cracking, or seal degradation.
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Last updated 2026-07-28. General guidance — always check your product’s care label. How we verify · Dishwasher care guides.