WHOLESALE & BULK GLASS BOTTLES AND JARS

MOQ : 1K-5K FOR STOCK, 6K+ FOR CUSTOMIZATION

ORDER SATISFACTION 99%+

quality control

QUALITY CONTROL

Have a question, or want a product recommendation? Get in touch—we’re happy to help.

100% Full Inspection

Personnel Inspection

Automatic Inspection

Test Laboratory

Raw Material Inspection

1.Raw Material Inspection

High-purity quartz sand, soda ash and other premium raw materials are used. Incoming batches are tested for composition and purity to avoid impurities, ensuring transparency and strength from the source.

2.High-Temperature Melting Control

High-Temperature Melting Control

High-Temperature Melting Control
Automatic Forming Process

3.Automatic Forming Process

Fully automatic IS machine forming, precise control of feeding, blowing pressure and cooling speed to ensure symmetry, uniform wall thickness, no crooked neck or eccentric base.

4.Neck & Opening Precision Inspection

Neck diameter, thread, verticality and sealing surface are inspected piece by piece to ensure perfect matching with caps, droppers and corks, no leakage or slipping.

Neck & Opening Precision Inspection
Full Visual Inspection

5.Full Visual Inspection

Each bottle is inspected under strong light: no bubbles, scratches, black spots, deformation or cracks. Uniform gloss and firm printing/decal.

6.Wall Thickness & Strength Test

Wall thickness uniformity tested by thickness gauge. Compression, impact and thermal shock tests ensure breakage resistance and safety standards.

Wall Thickness & Strength Test
Cleaning & Cleanliness Control

7.Cleaning & Cleanliness Control

High-pressure washing → air cleaning → drying → dust removal to ensure no dust, oil or glass debris inside, meeting food & cosmetic grade cleanliness.

8.Dimensional & Capacity Sampling

Height, diameter, weight and capacity are fully or randomly inspected with standard tolerances to ensure batch consistency for automatic filling lines.

Dimensional & Capacity Sampling
Leakage & Sealing Test

9.Leakage & Sealing Test

Sealing performance is tested after simulation filling to ensure tight fit and no leakage or air penetration during transportation.

10.Final Packaging & Shipment Inspection

Shockproof divided packaging, re-inspection before packing. Shipment only after passing AQL sampling to ensure safe delivery.

Final Packaging & Shipment Inspection

WHY SOVAYGALSS.COM?

Premium Glass Bottles for Every Need

We offer durable, clear glass bottles in various sizes for food, cosmetics and beverages.

Strict Quality Control & Safe Materials

All bottles are food-grade, non-toxic and pass strict quality inspections.

Customizable Designs & Logos

Support shape, color and logo customization to build your brand.

Competitive Factory Direct Prices

Direct from manufacturer with cost-effective prices and stable supply.

High Sealing & Leak-Proof Performance

Excellent sealing design ensures no leakage during storage and transport.

Professional Service & Fast Delivery

Experienced team provides efficient service and on-time delivery.

Information Request

For more information and how we can meet your needs, please fill out the form below and someone from our team will be in touch.

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