Double-Walled Insulated Glass Cups Wholesale – Borosilicate Thermal Mugs for Distributors & Bulk Buyers from KINGSTAR GLASSWARE

Double-Walled Insulated Glass Cups – A High-Volume Thermal Drinkware Category for Distributors, Importers, and Wholesale Buyers

In 2025, global production reached approximately 198 million units, with an average selling price of around US$ 8.4. Leading manufacturers maintain an average gross margin of around 45% due to the specialized lampworking techniques required to fuse the inner and outer glass layers.

These cups feature a unique “glass-within-a-glass” architecture, creating a thermal vacuum layer that prevents heat transfer and eliminates external condensation. By utilizing borosilicate glass, which offers superior thermal shock resistance, the design ensures that boiling liquids remain hot while the exterior stays cool to the touch. Downstream, the market serves premium homeware retailers, specialty coffee chains, and corporate gift distributors.

For importers and distributors, this sustained growth means reliable, repeatable demand across café chains, hotel procurement, corporate gifting, office supply, and retail channels.

This double-walled insulated glass cup line captures that demand. Precision-engineered from premium borosilicate glass through double-wall blowing techniques. The sealed air gap between the two layers creates a thermal barrier—keeping hot drinks warm and cold drinks cool without condensation, while the exterior remains comfortable to the touch. Crystal-clear transparency that showcases layered drinks beautifully. A condensation-free exterior that keeps tabletops dry. Available in capacities from 250ml to 450ml—covering espresso through large iced drinks—with custom options for buyers who need something specific. Lid options—bamboo, silicone, or transparent plastic—available for added temperature retention and spill resistance.

Why this cup belongs in your wholesale drinkware assortment:

Who orders this cup—and why they come back:

Wholesale distributors and importers supplying retail chains, specialty drinkware shops, and corporate gift programs. Double-wall glass cups are a growing category—consistent demand, steady reorder cycles. The shift from plastic to glass has accelerated as consumers prioritize health and eco-friendly alternatives. Distributors order in volume and reorder on schedule.

Coffee chain and specialty café buyers outfitting locations with on-brand drinkware for dine-in and takeaway service. The double-wall feature keeps coffee at the right temperature from first sip to last. The clear glass shows off latte art and layered drinks—a merchandising advantage that specialty coffee brands value. Cafés order in volume and reorder as they expand.

Corporate gift and promotional merchandise distributors handling branded drinkware for employee wellness programs, client appreciation, and corporate events. Laser engraving on the glass turns a functional cup into a lasting brand reminder. Distributors order in volume and reorder seasonally.

Hotel and hospitality buyers upgrading in-room coffee service, breakfast buffets, and executive lounge drinkware. Guests notice quality glassware—it signals attention to detail.

Office and workplace suppliers outfitting breakrooms, meeting rooms, and employee kitchens. The lightweight feel combined with real insulation makes these cups a practical choice for daily office use.

The capacity breakdown—and where each one fits:

Mix capacities in one order. Test which performs in your market. Adjust next order accordingly.

Lid options available:

What makes this cup different from standard glass mugs:

Borosilicate glass double-wall insulation, not single-wall. Two layers of glass with a sealed air gap that traps heat. Coffee stays hot longer. The outside stays comfortable to hold. No condensation, no drips, no burned hands. This is the feature that sells itself.

Thermal shock resistance that outperforms. Borosilicate glass handles sudden temperature changes—pour boiling water straight in, add ice, move it from dishwasher to counter—without cracking. This is the same material used in laboratory equipment, chosen specifically for durability and safety.

Crystal-clear transparency. Not cloudy, not tinted. True clarity that shows off the drink inside—the crema of an espresso, the swirl of a latte, the layers of a matcha. For cafés and social-media-driven brands, this is a merchandising advantage.

Lid options that complete the package. Bamboo for a natural, eco-friendly aesthetic. Silicone for a spill-proof, travel-friendly seal. Transparent plastic for full visibility of the beverage. Each offers a different aesthetic and price point. Your buyers choose what fits their brand.

Condensation-free exterior. The air gap between the walls prevents condensation from forming on the outside. No drips on tables, no coasters needed, no wet hands. A practical benefit that café, office, and hotel buyers appreciate every single day.

Dishwasher and microwave safe. The glass cup handles commercial washing cycles without clouding. Microwave-safe for reheating (remove lid). A practical combination that reduces end-user frustration and returns.

Lightweight yet sturdy. The lightweight feel combined with real insulation makes these cups practical for daily use. Easy to handle, easy to store, easy to transport.

Customization that builds your buyers' brands—and your reorder business:

Capacity options—250ml, 300–350ml, 450ml, or custom sizes for volume orders. Lid options—bamboo, silicone, transparent plastic, or custom lid designs. Glass finishes—clear is standard; amber, smoke, or custom tinted glass available on volume orders. Logo placement—laser engraving on the glass for permanent, dishwasher-safe branding, or screen printing for cost-effective brand visibility. Packaging—individual color boxes, kraft boxes with foam inserts, gift box sets, bulk-safe cartons, or custom packaging with buyer branding. KINGSTAR GLASSWARE handles it all in-house.

What KINGSTAR GLASSWARE brings to every order:

Over a decade of glassware manufacturing experience based in Qingdao, China—a major glass production and export hub. Specializing in double-walled insulated drinkware, glass bottles, and kitchen storage. Quality control on every batch—thermal performance testing, visual clarity inspection, lid fit verification. Protective packaging that survives sea freight—each cup individually wrapped with foam inserts, dividers in every carton, sturdy export cartons. Certification documentation ready for customs—FDA, LFGB, and EU Standard compliance, test reports available. Export experience across North America, Europe, and Asia—KINGSTAR GLASSWARE knows what importers and distributors need. Strong OEM and ODM capabilities—flexible MOQ, custom design services, and rapid prototyping for tailored solutions. Standard MOQ: 1,000 to 3,000 pieces per size/color. Factory-direct pricing and high-volume production ensure a competitive edge for international partners.

Location that saves you money.

Qingdao. The port is close. Your container does not wait for inland transport. It loads and moves. Competitive freight costs, predictable delivery. Lead time 15–30 days depending on lid customization.

The spec sheet

Looking to stock a thermal cup that serves cafés, offices, corporate gift channels, and retail shelves—all from a single source? Share your target capacities, lid preferences, and quantities—we will get a wholesale quote back to you. Every inquiry answered within 2 business hours.

Frequently Asked Questions

What is the MOQ for these double-walled insulated glass cups?
Standard MOQ is 1,000 to 3,000 pieces per size and lid type. Mixed capacities and lid types in one order are typically accepted—contact KINGSTAR GLASSWARE with your preferred breakdown for a specific quote.

Can I get a sample before placing a bulk order?
Yes. Samples are available for quality checking and market testing. Sample fees apply but are refundable or deductible from your first bulk order from KINGSTAR GLASSWARE. We recommend ordering samples before committing to a production run—especially if you are considering custom lid types, glass finishes, or logo placement.

What are the most popular capacities among wholesale buyers?
The 300–350ml range is the volume leader—it covers the standard coffee serving size that moves fastest through cafés, houseware retail, and corporate gifting channels. The 250ml moves well through fine dining, hotel, and gift segments. The 450ml serves iced drink, smoothie, and hospitality buyers. KINGSTAR GLASSWARE recommends mixing capacities on first orders to test regional demand.

What lid options are available, and how do they differ?
Bamboo—eco-friendly, natural aesthetic, premium feel. Silicone—spill-proof seal, travel-friendly, practical. Transparent plastic—full beverage visibility, cost-effective. Each offers a different aesthetic and price point—your buyers choose based on their brand positioning.

Is this cup suitable for commercial dishwasher use?
Yes. The borosilicate glass formulation and double-wall construction handle commercial dishwasher cycles without clouding or weakening. This is a key requirement for café, office, and hotel buyers—KINGSTAR GLASSWARE builds for it.

Is the lid included, and is it spill-proof?
Yes, the cup comes with a lid. The bamboo, silicone, and plastic lid options are splash-proof and help retain temperature. The silicone lid, in particular, provides a more secure seal for travel and commuting.

Questions about custom capacities, lid types, or logo placement? Drop us a message—we will get back to you with the details you need.

KINGSTAR GLASSWARE Double-Walled Insulated Glass Cup combines elegant design with superior thermal performance. Featuring premium borosilicate glass and precision double-wall construction, this cup keeps beverages hot or cold longer while the outer wall stays cool to the touch—completely condensation-free. The crystal-clear transparency beautifully showcases layered drinks, making it a favorite for specialty coffee presentations, iced beverages, and social media food styling. As a trusted glassware manufacturer and wholesale supplier, we provide competitive wholesale pricing and bulk order solutions for importers, distributors, cafes, hotels, and retail brands worldwide.

Superior Thermal Insulation
Double-walled construction with a vacuum-like air barrier effectively maintains beverage temperature—keeping coffee and tea hot for extended periods while protecting hands from heat. The condensation-free design ensures tabletops stay dry, perfect for both hot and iced drinks.

Premium Borosilicate Glass
Made from high-quality, heat-resistant borosilicate glass, this cup offers exceptional thermal shock resistance, crystal-clear transparency, and excellent durability. Dishwasher-safe and microwave-safe for everyday convenience.

Customizable Options for OEM/ODM Orders
Available in multiple capacities: 250 ml (tea, black coffee, desserts), 300–350 ml (cappuccino, latte, daily beverages), and 450 ml (iced drinks, smoothies, large servings). Custom sizes and shapes available for wholesale projects. Lid options include bamboo, silicone, and transparent plastic to suit your branding needs. We provide full OEM/ODM customization services including custom logos, barcode labeling, and private label packaging.

Versatile Applications
Perfect for home kitchens, cafes, restaurants, dessert shops, hotels, offices, and coffee bars. Ideal for coffee, tea, matcha, hot chocolate, iced coffee, cold brew, fruit tea, smoothies, and sparkling beverages.

Secure Packaging Options
Customizable packaging solutions including individual color boxes, kraft boxes, gift box sets, and bulk-safe cartons. Private label and retail-ready packaging available.

With over 10 years of experience in glassware manufacturing, KINGSTAR GLASSWARE offers comprehensive OEM/ODM services for double-walled insulated glass cups and thermal mugs. From custom sizes, capacities, and lid options to branded packaging and logo printing, we provide end-to-end solutions tailored to your market needs. We work with international supermarkets, private label brands, distributors, and online retailers, offering stable quality, competitive pricing, and professional packaging solutions.

Located in Qingdao, China – one of the world's busiest ports, ensuring competitive freight rates and fast shipping lead times (15–30 days).

FDA-approved for food contact · LFGB-certified (German food safety standard) · ISO9001 quality management system

Looking for a reliable thermal glass cup supplier for your coffee brand or retail collection? Send us your inquiry now and get a competitive wholesale price list tailored to your market. We reply to every request within 2 business hours.

What is your MOQ for this double-walled glass cup?
MOQ depends on your specific design, capacity, and packaging requirements. We accommodate both small trial orders and large wholesale projects. Please contact us with your target quantity and we will provide a customized quote.

Can I get a sample before placing a bulk order?
Yes, we offer samples for quality checking. Sample fees apply but will be refunded or deducted from your first bulk order. Samples with different capacities and lid options are available.

What lid options are available?
We offer bamboo, silicone, and transparent plastic lids. Each material provides a different aesthetic and functional experience—bamboo for a natural look, silicone for a tight seal, and plastic for full visibility of your beverage.

Have other questions? Just drop us a message – we are happy to help you with every detail of your order.

Company Introduction
With more than ten years of manufacturing and export experience, our company specializes in producing high-quality glassware for global markets. Our product range includes drinkware, food storage jars, glass pitchers, coffee and tea accessories, wine glasses, glass kitchenware, bakeware, and fully customized OEM and ODM glass products. We work with international supermarkets, private label brands, distributors, and online retailers, offering stable quality, competitive pricing, and professional packaging solutions. Our production team focuses on craftsmanship, safety, and modern design to meet the growing demand for durable and stylish glassware.