Q1: What material are your glass cups made of? Are they safe for use?
A1: Our core series of glass cups are made of food-grade high borosilicate glass, while our regular series adopt food-grade soda-lime glass. All products fully comply with national safety standards for food contact materials, featuring lead-free, cadmium-free, odor-free properties and no hazardous substance precipitation. They can be safely used for holding drinking water, various beverages and food.
Q2: Can I pour boiling water directly into the glass cup? What is the temperature difference resistance range?
A2: The high borosilicate glass series has an instantaneous thermal shock resistance ranging from -20°C to 150°C. Boiling water can be poured directly into the cups, which can also be placed in the refrigerator for refrigeration without shattering under sudden cooling or heating. For the soda-lime glass series, we recommend pouring a small amount of warm water to preheat the cup body before adding boiling water, so as to avoid damage caused by extreme temperature differences.
Q3: Can the glass cups be used in microwave ovens, dishwashers and disinfection cabinets?
A3: Pure glass bodies without metal accessories (including gold rims, metal lids, and metal handles) are safe for use in microwave ovens, dishwashers and disinfection cabinets. For models with metal decorations or accessories, they must NOT be placed in microwave ovens, and hand washing is recommended to prevent wear and oxidation of the metal parts.
Q4: Are the glass cups easy to break? Do you have shatter-resistant models?
A4: Glass is inherently a fragile material. Our full product line features a thickened cup body and reinforced cup bottom, which greatly improves daily impact resistance. Nevertheless, severe impact and falling from high places should be avoided. We also offer shatter-resistant models with silicone protective sleeves for further reduction of breakage risks.
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