When frying coffee beans, high temperature will make coffee beans release some gases, which contain waste gas such as carbon dioxide. If there is poor ventilation, these waste gases may have a certain impact on human health. In addition, if unhealthy fuels or methods are used when frying coffee beans, harmful substances such as carbon monoxide and sulfur dioxide may be produced, which is harmful to human health.

Therefore, it is suggested to maintain a good ventilation environment and use healthy fuels and methods when frying coffee beans to reduce the production of harmful substances. If there is smoke, you can wear a breathing filter mask to protect your health.