All stainless steel material , easy to clean,no rush, strong corrosion resistance. The quality of the machine is guaranteed. After the jam is heated, it can be squeezed out of the upper part of the jam,which is easy and quick. Advanced thermostat Precision temperature control, let the the temperature of your hand,make the jam is more delicious. No-toxic and harmless Strong anticorrosion.Easy to clean, long life. Accurate temperature control, normal temperature to 85 degrees adjustable, suitable for different temperature requirements of the ingredients..syi