Custom Stainless Bottles & Metal Flasks | China Wholesale Supplier

At Yahik, we use food-grade 18/8 (304) stainless steel for both inner and outer walls. Our bottles are BPA-free, rust-resistant, and don't retain flavors. We employ advanced double-wall vacuum insulation technology, which keeps drinks cold for up to 24 hours and hot for up to 12 hours, ensuring your customers get top-tier performance.

Yes! Beyond standard models, we offer extensive OEM/ODM services. You can choose from various finishes including powder coating (extra durable), rubber paint, or glossy finishes. We can match any Pantone color to align perfectly with your brand identity for bulk orders.

To ensure your logo lasts as long as the bottle, we recommend:

• Laser Engraving: Creates a permanent, premium silver or dark finish.

• 3D UV Printing: Ideal for multi-color logos with a tactile, embossed feel.

• Screen Printing: Most cost-effective for large-scale wholesale promotional bottles.

• Full-wrap Water Transfer: Perfect for complex patterns covering the entire bottle surface.

Absolutely. All our personalized insulated flasks feature precision-engineered lids with food-grade silicone seals to prevent leaks. The vacuum insulation also prevents "sweating" (condensation) on the exterior, protecting your bag or desk from moisture.

We implement a rigorous three-step inspection process:

1. Raw Material Check: Verifying the 304 stainless steel grade.

2. Vacuum Testing: Every single bottle undergoes a temperature retention test.

3. AQL Final Inspection: Before shipping from China, we perform a final quality check on branding, finish, and packaging to ensure they meet international standards.