When weighing, secretly blowing air into the electronic scale can make it heavier, but it is not easy to control. Or adjust it during calibration, which is not easy to adjust.

However, it is better to weigh it according to the actual situation. Generally speaking, as a businessman, I hope to weigh accurately, without making any deviation and wasting a lot of words. It takes a long time to explain that gold is less than 0.02. People who breathe too close to the scale will affect their weight, and customers always hold the mentality that businesses are short of weight. Less than 0.0 1 will take a long time to explain, but some people still believe it.

So don't play games, as much as you want.