The products sold on the Internet are both real and fake. One can only sigh that this is an era of explosive growth of all kinds of commodities.

When buying a silver cup, first look at the weight of the silver content in the cup, and second, look at the style of the cup shell.

First, pour a little boiling water into the bottom of the cup, and then touch the top of the silver liner with your hand. If you can quickly feel hot, then the silver purity of this silver cup is at least 90% or more, because the thermal conductivity of silver is really too high. This can distinguish whether the liner is silver-plated.

Second, use a magnet to experiment. Magnets do not attract pure silver. If it is made of other metals or mixed with other metals, it will be attracted by magnets.

It is recommended to buy from regular channels.