1. There is no tail growing out of the lower opening of the blue cover from the regular factory, and there is no reserved arc-shaped tear guide line near the tail, while the counterfeit products are made of poor materials and do not Leaving this tail makes it difficult to tear off the cap and refill it after removing the cap.

2. Look at the top surface of the blue cover, which is the surface where the water dispenser is inserted and the round hole is poked to release the water. Behind the circular anti-counterfeiting label in the dead area, there are multiple circles of tiny circles surrounding the round hole. The concentric circles should be facing the light and viewed from an angle. The nail clip is not smooth here. The fake one has a smooth plane around the water diversion hole.

3. Look at the edge of the blue cover. The blue cover is in the shape of a cylinder, with the Wahaha trademark in Chinese characters on the ridge line of the cylinder. If the Chinese characters are protruding, it is 80% likely to be fake.