Enhance Paper Packaging Quality with the Precision Cobb Tester A Cobb Tester is an essential instrument used to determine the water absorbency of paper, cardboard, and other packaging materials. It helps manufacturers ensure the material’s ability to resist moisture and maintain integrity during handling and storage. Why Use a Cobb Tester: Using a Cobb Tester improves quality control by evaluating how much water a material absorbs in a specific time. This ensures the packaging remains durable under humid conditions, protecting the contents from damage. It's a reliable tool in paper, packaging, and printing industries for maintaining high product standards.