(flammable and non-flammable) principle is the dissolution of grease, which creates their solution, which is regenerated by distillation. This makes it possible to reuse the solvent. Today, various types of solvents are used, ranging from industrial gasoline, which is not very effective in conjunction with a rag (grease smears the product) and very unecological, through halogenated hydrocarbons used in washing tables, to closed steam degreasing systems where vapor degreasers they condense on the product, pull off the grease, fall back into the bath and distill again.