First of all, you need to determine whether the product is under warranty; Secondly, you need to check whether the package is damaged; Thirdly, you need to confirm whether you bought genuine Lulu almond milk produced by Hebei Chengde Lulu Co., Ltd. If the first three items are correct, Lulu almond milk has indeed deteriorated, which may be caused by the tank during transportation. In this case, it is recommended that you contact the manufacturer's customer service to reflect that the manufacturer will return the goods for you.