What do the numbers on the bottom of the plastic cup represent?
摘要：Usually, each plastic container has a number at the bottom (it is a triangle with an arrow and a number inside the triangle). If the number is "05" or above, it can be reused in a loop; If it is less than "05", that is, "04" or below, or even without a number, please do not reuse or heat it up for use
Usually, each plastic container has a number at the bottom (it is a triangle with an arrow and a number inside the triangle). If the number is "05" or above, it can be reused in a loop; If it is less than "05", that is, "04" or below, or even without a number, please do not reuse or heat it up for use