SLY GLASS insists on quality first

Every piece glass bottle produced by SLY should undergo rigorous quality control testing to ensure they meet the standards of quality and safety.

We inspect the glass bottles from following aspects:

  • Visual Inspection: Bottles are visually inspected for defects, such as cracks, chips, bubbles, inclusions, or any surface imperfections.
  • Dimensional Accuracy: The bottles’ dimensions, including height, diameter, and wall thickness, are measured to ensure they conform to specified tolerances.
  • Capacity and Weight: Bottles are filled to their intended capacity and weighed to verify that they hold the correct volume and have the expected weight.
  • Glass Quality: The glass composition are tested to ensure it meets the required quality safety standards.
  • Closure Compatibility: The bottles’ neck and finish are checked for proper threading and sealing to ensure compatibility with closures, such as corks, screw caps, or other sealing methods.
  • Fill Line Compatibility: Bottles are tested for compatibility with production line filling and capping equipment to ensure smooth and efficient production.
  • Label Adhesion: If labels are applied to the bottles, the adhesion of labels will be tested to ensure they remain in place during handling and storage.
  • Bottle Strength: Bottles undergo top load and bottom load strength tests.
  • Leak Testing: Bottles are tested for leaks to ensure the closure and seal are tight.
  • Hygiene and Cleanliness: Bottles are tested to ensure they are free from contaminants or residues.
  • Light Transmission: For bottles used for spirits that are sensitive to light, such as whiskey, the ability to block or transmit light may be tested to prevent light-induced spoilage.
  • Sealing Integrity: For bottles sealed with cork stoppers or other closures, the sealing integrity should be tested to prevent oxidation or leakage.