It is impossible to scrape magnetic powder in winter. Can I bake it with fire? Why?

You can bake it slowly with a small fire, because it can speed up drying and avoid yellowing and bulging in the future. The space for storing putty powder must be dry, and at the same time, a proper amount of desiccant should be placed beside it to absorb the moisture and humidity in the ground and air, so that putty powder can dry faster; Secondly, when the weather is fine, you can put the putty powder in the sun and it will dry faster. Note that if it is stored for a long time, it should be taken out and dried regularly to avoid affecting performance. If you can't dry the magnetic powder in winter, you can bake it slowly with a small fire, because this can speed up the drying and avoid yellowing and bulging in the future. Scraping porcelain powder in winter is easy to crack. Because porcelain powder needs some water to adjust its viscosity. If it is in winter, when the temperature is relatively low, the prepared viscosity is not enough to fill the porcelain, it is easy to crack.