The Grainer evaporation process is a method of producing salt. This method uses shallow open pans with

steam Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization ...

-heated immersion coils to evaporate the

brine Brine is a high-concentration solution of salt (NaCl) in water (H2O). In diverse contexts, ''brine'' may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for br ...

into salt. Sometimes it is paired with a partial-vacuum, to speed evaporation.

See also