Someone put the folded ingots on the kitchen windowsill. What's the point?

There are some stresses on putting the folded ingots on the kitchen windowsill. First of all, try to avoid putting the ingots on the kitchen windowsill, because there is a lot of smoke and lampblack in the kitchen, which will bring pollution to the ingots and affect their quality. Secondly, we should try to avoid putting the ingots on the kitchen windowsill, because the ambient temperature in the kitchen may rise, which will affect the appearance and quality of the ingots. Finally, we should try to avoid putting the ingots on the kitchen windowsill, because the kitchen environment is humid, which may damage the appearance and quality of the ingots over time. Therefore, when placing stacked ingots on the kitchen windowsill, we should pay attention to avoid the adverse effects of smoke, temperature and humidity on ingots as much as possible.