The distiller is an integrated teaching tool used in chemical experiments to separate liquid mixtures. It consists of distillation flasks, condenser tubes, receivers, thermometers, and other components, some of which are equipped with heating devices and supports, forming a closed distillation system as a whole. The material is mostly high-temperature resistant glass. In teaching, it is used to demonstrate the experiment of "using boiling point differences to separate miscible liquids", which is suitable for teaching "substance separation" in middle school chemistry. It can visually display the complete distillation process and help students understand the principle of distillation. It is a core experimental tool that connects simple distillation and industrial distillation knowledge.