An evaporation apparatus is described, particularly for evaporating a reactive material such as lithium. The evaporation apparatus includes an evaporation crucible for evaporating a liquid material, a material conduit for supplying the liquid material to the evaporation crucible, and a valve configured to close the material conduit by solidifying a part of the liquid material in the material conduit with a cooling device. The valve may include a cooling gas supply for a cooling gas, and the cooling device may be configured to cool the liquid material with the cooling gas. Further described are a vapor deposition apparatus for coating a substrate as well as an evaporation method.