The three basic steps of parboiling are soaking, steaming and drying. He invented the Huzenlaub Process for parboiling rice. Combs are prepared by parboiling and skinning, then cooking in court-bouillon. West Africa and the Afro-Caribbean diaspora are also accustomed to parboiling rice. Surplus fat is removed from the ribs, either by cutting or removing after parboiling. They are prepared by parboiling, and cooked in a curry until soft. It is an edible mushroom after parboiling. Each round of parboiling reduces the gyromitrin contents to a tenth. The bitterness seems to vary from one collection to another and is removed by parboiling.