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How to distinguish the quality of paper cups

Generally, at the time of purchase, the paper cup is mainly determined by observing the appearance characteristics, and the good paper cup generally performs the following test quality test: functional test: whether the test paper cup can hold a liquid, such as water. Performance test: Test whether the paper of the paper cup is thick enough to be deformed.

Generally, at the time of purchase, the paper cup is mainly determined by observing the appearance characteristics, and the good paper cup generally performs the following test quality inspection:

Functional test: Test whether the paper cup can hold liquid, such as water.

Performance test: Test whether the paper of the paper cup is thick enough to be deformed.

Stress test (load test): Whether the liquid full of paper cups will be bad

Recoverability test: After the liquid is poured out, the paper cup can be restored to the original

Strength test: Whether the paper cup will soften and damage after a period of liquid.

Appearance test: Whether the paper cup is beautiful or not, is the pattern beautiful?

Ease of use test: Whether the paper cup is good when used, the taste is good, and it will not puncture.

Safety test: After the cup is filled with water, the cup will be deformed to spill liquid onto the user.