Double Wall Glass Mug Manufacturer | Handleless Design

Double Wall Glass Mug Manufacturer | Handleless Design

Materials:

• Glass: Mouth-Blown, High-Quality Borosilicate Glass

• Insulation: Sealed Air Gap Between Two Glass Layers

• Base: Sealed Silicone Vent for Pressure Equalization

Experience the art and science of modern drinkware. As a specialized double wall glass manufacturer, KINGSTAR GLASSWARE creates these stunning handleless mugs that transform every coffee or tea into a visual spectacle. The innovative double-wall construction makes the beverage appear to float magically within the glass, while providing outstanding thermal insulation. This is not just a mug; it's a piece of functional design for discerning consumers and high-end cafes.

How does the double wall construction work and is it durable?

The mug is crafted from two layers of lightweight yet strong borosilicate glass, with a sealed air gap in between. This vacuum-insulated layer is the secret to its performance: it keeps hot drinks hot without burning your hands, and cold drinks cold without creating messy condensation. While elegant, borosilicate glass is surprisingly durable for daily use. A small, sealed silicone vent at the base equalizes the air pressure, a hallmark of high-quality manufacturing, preventing stress on the glass.

What are the branding and OEM opportunities for this premium item?

As an OEM partner, we can help you create a signature drinkware line. The clean, minimalist surface is a perfect canvas for a subtly etched or printed logo, making it an exceptional piece of branded cafe glassware or a high-end corporate gift. For our bulk order clients, we can also develop custom retail packaging, creating a shelf-ready product that communicates premium quality.

What are your MOQ and quality assurance processes for these mugs?

Typically, our Minimum Order Quantity (MOQ) for this type of specialty item starts around 3,000 units. This number can vary depending on the complexity of customization (e.g., custom logo printing or unique packaging). We recommend contacting us with your specific requirements for a precise quote. Every single mug undergoes a rigorous quality control process, including checks for clarity, seal integrity, and dimensional accuracy. As a trusted supplier, we provide competitive factory-direct pricing and flexible price terms (FOB, CIF, etc.).

Choosing KINGSTAR GLASSWARE means sourcing from a manufacturer at the forefront of modern glassware technology.

Ready to offer your customers a superior drinking experience? Contact us for a wholesale quote.

FAQ

Is the small silicone seal at the bottom a defect?

No, quite the opposite. It is a hydrophobic silicone vent that is essential for the manufacturing process. It allows the mug to "breathe," equalizing the pressure between the glass walls and the atmosphere, which prevents the glass from shattering when filled with hot liquids.

Are they truly comfortable to hold without a handle?

Yes. Because of the excellent insulation, the outer wall remains cool to the touch, even with boiling hot liquid inside. The ergonomic shape is designed to fit comfortably in your hand.

Are they microwave and dishwasher safe?

We recommend hand washing to ensure the longevity of the silicone vent's seal. While borosilicate glass itself is microwave safe, for maximum product life, it's best to avoid extreme and rapid temperature changes that a microwave or a high-heat dishwasher cycle can cause.