What characterizes a clean burn?

A clean burn is characterized by the absence of carbon deposits on surfaces. This phenomenon occurs when combustion processes are efficient, leading to the production of mainly carbon dioxide and water vapor, with minimal incomplete combustion byproducts such as soot or unburned hydrocarbons. In an ideal clean burn scenario, the materials that are being combusted have undergone complete combustion, which results in a higher temperature and reduced output of particulates. The presence of carbon deposits indicates that the combustion process was incomplete or inefficient, contrary to the characteristics of a clean burn. Thus, identifying a clean burn involves looking for surfaces that show no signs of carbon accumulation, indicating a cleaner and more efficient combustion process.