Store & Serve / TruGlass / Storage
Zero plastic
The cleanest way to heat and store.
- High borosilicate glassAbsorbs sudden temperature swings of up to 180 °C.
- Air lock and ventOpen the vent in the lid to microwave with the lid on.
- Silicone sleeveShock-absorbing silicone shields the glass and gives a non-slip grip straight out of the microwave.
- Airtight lidTempered glass with a silicone rim, resistant to leaks and odours.
What it is made of
Three parts, zero plastic.
Just glass and silicone: a high borosilicate glass container, a silicone sleeve and a tempered glass lid, made to go from the fridge to the oven and from the freezer to the microwave.
01Glass container
High borosilicate glass, lab-grade 3.3. It handles -40 °C to 500 °C, absorbs a sudden 180 °C change, and its scratch resistance protects it from everyday kitchen bumps.
02Silicone sleeve
Shock-absorbing silicone that shields the glass against drops and heat, and gives a secure, non-slip grip straight out of the microwave. Food-grade, and heat safe up to 230 °C.
03Silicone-rim tempered glass lid
Airtight, leakproof and odour resistant. The silicone rim shields the glass and stays flexible at -40 °C, so the lid opens easily from the freezer. Open the air vent for the microwave; take the lid off for the oven.
The temperature guide
Cold storage.
Hot meals.
High borosilicate glass, made for both.
Choose a temperature to see what stays on
and what comes off.
OVEN & AIR FRYER
160–260°C
High borosilicate glassFreezer
Keep tomorrow’s meal ready.
Store with the lid on. High borosilicate glass is rated down to −40°C; the everyday freezer guide point is −18°C.
- Lid
- Lid onTruGlass Case
- Sleeve
- Sleeve onSilicone sleeve
Fridge
Fresh today. Ready for later.
Keep the lid closed for airtight storage. The glass and silicone go into the fridge together.
- Lid
- Lid onTruGlass Case
- Sleeve
- Sleeve onSilicone sleeve
Microwave
A little vent. A warm meal.
Open the air vent before heating; the lid and sleeve can stay on. The 100°C marker is a heating guide point, not a microwave setting.
- Lid
- Vent openLid can stay on
- Sleeve
- Sleeve onSilicone sleeve
Oven & air fryer
Let the glass take the heat.
Use the glass container on its own, with the lid and silicone sleeve removed. Oven cooking guide: 160–260°C.
- Lid
- Lid offTruGlass Case
- Sleeve
- Sleeve offSilicone sleeve
Cold limit
Made for the deep cold.
The glass is rated down to −40°C. The silicone lid rim stays flexible in the cold, so the lid can still be lifted off.
- Lid
- Lid onTruGlass Case
- Sleeve
- Sleeve onSilicone sleeve
Heat limit
500°C. For the glass itself.
This is the glass material’s upper rating, not a cooking recommendation for the assembled container. Silicone is rated to 230°C; remove the lid and sleeve for oven use.
- Lid
- Lid offTruGlass Case
- Sleeve
- Sleeve offSilicone sleeve
180°Cthermal-shock resistance
The glass can handle a sudden temperature change of up to 180°C. This describes the temperature difference, separate from the −40°C to 500°C material range.
The TruGlass difference
A clearer comparison.
Three glass types. Six differences.
Every detail, at a glance.
Swipe to compare →
| Material | TruGlassLab-grade 3.3 · High borosilicate | Standard glassLow borosilicate | Regular glassTempered / soda-lime |
|---|---|---|---|
| Boron content | High · ≈12–13%Chemical stability | Low · ≈4–5%Weaker structural link | None · 0%Unstable under heat |
| Thermal expansion× 10⁻⁶ K⁻¹ | Ultra-low · 3.3Zero thermal stress | Medium · ≈5.0Expands under high heat | High · ≈9.0Rapid expansion; cracks easily |
| Surface hardnessMohs scale | High · ≈6.5Resists sink & flatware impacts | Medium · ≈5.5Rough scrubbers can scratch | Low · ≈4.5Scratches easily; may turn cloudy |
| Shatter profile | Predictable cracksClean, manageable breaks | Standard fracturingMedium-sized shards | Explosive shatteringBreaks into micro-fragments |
| Primary use | Lab & premium kitchenwareBuilt for extreme conditions | Low-cost storage jarsLightweight pantry use | Windows & beverage bottlesSingle-use or cold contents |
| Heat tolerance | Freezer-to-oven versatilityHandles sudden 180°C changes | Limited heat toleranceThaw slowly to room temperature | High thermal riskRisk of thermal failure |
TruGlass temperature ratings
Can it go in the microwave?
Yes. The lid and sleeve can stay on: open the air vent in the lid first.
Can it go in the oven or air fryer?
Yes, at 160–260 °C, with the lid and the silicone sleeve off. The glass itself is safe up to 500 °C.
Can it go in the freezer?
Yes, with the lid and sleeve on, down to -40 °C. The silicone rim stays flexible, so the lid comes off easily.
Is it dishwasher safe?
Yes.
What is the lid made of?
Tempered glass with a food-grade silicone rim and an air lock and vent.
Is there any plastic in it?
No. It is glass and silicone only: a high borosilicate glass container, a silicone sleeve, and a tempered glass lid with a silicone rim.
Why high borosilicate glass?
It barely grows as it heats: about 3.3 millionths of its size per degree, against roughly 9 for ordinary soda-lime glass. That is how it takes a sudden 180 °C change, from the freezer to the microwave or the fridge to the oven.
