Explore our primary collection of CE-compliant, vacuum-insulated stainless steel drinkware. Manufactured under rigorous quality control standards, each set guarantees zero toxic migration, high durability, and maximum thermal insulation efficiency.
In the competitive global market for stainless steel drinkware, obtaining genuine CE Certification is not merely a label—it is a comprehensive validation of chemical safety, thermal performance, and mechanical integrity. As leading original equipment manufacturers (OEM) and original design manufacturers (ODM) based in Wuyi County, Zhejiang, we integrate advanced metallurgical engineering with precision robotics to manufacture high-performance mugs sets, tumblers, and flasks.
We utilize food-grade SUS304 (18/8 chromium-nickel composition) as standard for inner and outer walls. For medical-grade or ultra-corrosive beverage applications, we deploy SUS316 surgical stainless steel containing 2-3% molybdenum. This guarantees exceptional resistance to pitting corrosion caused by acidic beverages such as coffee, citrus juices, and carbonated liquids.
Our double-walled vacuum insulation utilizes high-temperature getter degassing at 500°C to achieve a deep vacuum space (< 0.001 Pa). An internal electro-plated copper layer is applied to the exterior of the inner shell, reflecting thermal radiation back into the beverage and reducing radiant heat transfer by over 92% compared to non-copper-lined alternatives.
Surface finishing utilizes electrostatic powder coating and UV-curable polymer printing. These advanced coatings undergo rigorous cross-hatch adhesion testing (ASTM D3359 Class 5B) and high-temp dishwasher resistance tests (500+ commercial cycles) without flaking, fading, or micro-cracking.
| Parameter Standard | Technical Specification | Testing Methodology / Compliance |
|---|---|---|
| Material Composition | Inner Wall: SUS304 / SUS316 Stainless Steel Outer Wall: SUS304 Stainless Steel |
Spectrophotometer Alloy Analysis, RoHS 2.0 Compliance |
| Thermal Insulation Profile | Hot: > 68°C at 12 Hours (Initial 95°C) Cold: < 8°C at 24 Hours (Initial 0°C) |
EN 12546-1 Thermal Performance Protocol |
| Sealing Lids & Straws | BPA-free Tritan (Co-polyester) & Food-Grade Silicone Gaskets | EU No 10/2011 Plastic Materials Regulation |
| Heavy Metal Migration | Lead (Pb), Cadmium (Cd), Chromium (Cr), Nickel (Ni) non-detectable | LFGB & FDA 21 CFR 175.300 Extraction Testing |
| Vacuum Seal Lifetime | Molecular getter-assisted vacuum retention up to 5+ years | Helium Mass Spectrometer Leak Detection (< 1x10^-9 mbar L/s) |
For corporate buyers, brand owners, and importers across Europe, North America, and Latin America, navigating international safety mandates is paramount. CE certification for mug sets and hydration containers requires meeting a complex web of European Union Directives. Our internal regulatory team manages full documentation, laboratory audits, and technical file compilation to streamline your customs clearing process.
Ensures that materials intended to come into contact with foodstuffs do not transfer their constituents to food in quantities that could endanger human health, bring about an unacceptable change in the composition of the food, or bring about a deterioration in the organoleptic characteristics thereof.
Our products pass rigorous organoleptic testing (flavor and odor neutrality) as well as overall migration limits in acidic simulant (3% Acetic Acid), alcoholic simulant (20% Ethanol), and fatty food simulants, exceeding baseline European requirements.
All plastic polymer lids, silicone seals, and powder-coated exteriors are rigorously tested for Substances of Very High Concern (SVHC), Phthalates, Bisphenol A (BPA), Bisphenol S (BPS), and Heavy Metals in compliance with REACH Annex XVII and California Proposition 65.
Located in Wuyi County, Zhejiang Province—the global epicenter of stainless steel drinkware manufacturing—Wuyi Dongyi Dailysupplies Co., Ltd leverages a vertically integrated supply ecosystem. By combining automated intelligent manufacturing with skilled craft technique, we deliver world-class productivity, rapid prototyping, and structural supply chain resilience.
Utilizing high-pressure hydraulic metal shaping and laser seam welding to achieve ultra-consistent wall thickness down to 0.4mm, reducing container weight by 15% while enhancing structural strength against drop impact.
Every batch undergoes a 5-stage automated inspection pipeline: raw coil spectral analysis, vacuum integrity testing via infrared thermal imaging, leak testing under 0.6 MPa air pressure, color accuracy verification (Delta E < 0.5), and final torque check on leakproof lid assemblies.
Our strategic raw material buffers and in-house tooling facilities enable sample production in as fast as 3-5 days, with monthly production capacities exceeding 800,000 units to comfortably support massive seasonal retail orders.
We tailor our manufacturing and branding solutions to meet the specialized purchasing criteria of diverse enterprise channels worldwide—including Amazon FBA sellers, corporate promotional merchandise buyers, sporting goods brands, and outdoor retail chains.
Submit design blueprints, target capacities (e.g., 20oz, 30oz, 40oz, 64oz), and desired lid functionalities (straw lid, flip lid, magnetic spout).
Receive precise engineering feedback, DFM (Design for Manufacturability) analysis, tooling quotes, and unit cost breakdowns within 24 hours.
3D digital modeling and physical prototype creation (3D printing & CNC metal carving) with laser-etched custom logos for client sign-off.
Automated pressing, hydroforming, high-vacuum degassing, powder coating, and multi-point quality gate checks.
Final CE, LFGB, and FDA compliance documentation provided alongside custom packaging, palletizing, and global DDP/FOB shipping.
Wuyi Dongyi Dailysupplies Co., Ltd is located in the beautiful Wuyi county, Zhejiang Province, China. It is specialized in production, research and development of kinds of food grade stainless steel tumblers, mugs, bottles, cups, jugs and containers, etc. Both double-walled vacuum insulation construction and single wall construction are included. We have advanced production machines and testing equipment, a strict quality controlling system, and a professional team of research & development with vast experience in this field.
From our establishment, our company has strictly adhered to the core tenets: Quality First, Service First. We have cultivated long-term OEM/ODM strategic partnerships with major brands and importers across the USA, Europe, South America, Middle East, and Southeast Asia. With customized surface coating colors, creative patterns & laser logos, and multi-functional ergonomic lids, our products offer unparalleled market appeal and long-lasting durability.
As market demands evolve toward sustainability, smart technology, and enhanced health safety, Wuyi Dongyi Dailysupplies Co., Ltd is pioneering key structural and material innovations in the drinkware sector:
Transitioning toward 90% post-consumer recycled 304 stainless steel (certified by Global Recycled Standard - GRS). This reduces carbon footprint during raw material processing by up to 70% while retaining full structural and corrosion-resistant integrity.
Integrating ceramic-silver ion internal matrix coatings that inhibit bacterial growth (99.9% reduction in E. coli and S. aureus) without leaching chemical residues or altering beverage taste profile.
Incorporating energy-harvesting micro-LED temperature displays into food-safe lids, allowing users to monitor beverage thermal status instantly without requiring battery changes or external charging.
Discover our extended line of specialty insulated drinkware, including travel mugs, skinny tumblers, mate gourds, and high-capacity hydration flasks.
Dongyi