Before revision: Disadvantages of the Pidgeon process Magnesium retort Although the Pidgeon process has many perks, there are some environmental disadvantages of the process as well.
After revision: Disadvantages of the Pidgeon process Schematic cut of a retort: ​​(a) outlet for creating a vacuum (b) cold water inlet and outlet (c) retort door (d) magnesium crown (e) heat shield (f) retort furnace wall Although the Pidgeon process has many perks, there are some environmental disadvantages of the process as well.