How to Judge the Quality of Cosmetic Glass Empty Bottles

High-quality cosmetic glass bottles have transparent and uniform texture, no bubbles, no water lines and no black spots inside. The bottle mouth is smooth without burrs, the thread is neat, and the matching tightness is good. The bottle body has uniform wall thickness, strong hardness and not easy to break after falling. Inferior glass bottles have dark color, many impurities, rough bottle mouth easy to scratch hands, uneven wall thickness and easy liquid leakage. Purchasers can quickly screen high-quality packaging through appearance, hand feeling and sealing test.