Current location - Health Preservation Learning Network - Health preserving recipes - The health cup is poisonous.
The health cup is poisonous.
First of all, it must be clear that if it is silver, there is no question of authenticity, only dishonest behavior. For example, merchants say it is 99.9% silver, but in fact it is only 92.5% silver, but it is indeed a silver ornament. There are several ways to identify whether the silver material is simple and easy to operate without damaging the silver:

1, magnet

Magnets can attract iron, steel, brass and their mixtures, so magnets can first find out whether they are made of silver.

Step 2 wipe the silver bar

Generally, there are silver rubbing sticks in places where silver is sold. You can wipe it on the spot to see if it is silvery white, and if it is, it is silver.

3. Difficulties

The higher the silver content of the silver health cup, the softer it is. We can draw on the cup with sharp objects such as pins. If it is hard, the scratch is not obvious or shallow, it means it is not silver. If there are some deep scratches, it means that the cup is silverware.

The most accurate monitoring method is to go to a professional appraisal institution for monitoring, which costs one to twenty yuan at a time, and there will be a test certificate, which is more accurate and intuitive.