Similar whisks known as Swedish straw whisks or Swedish visps are also available that are made of stiff straw bristles or birch branches like the traditional birch whisk. Always made to whip lighter ingredients, the birch whisks cannot be effectively used to whisk ingredients such as eggs, flour or heavy creams. To clean the birch whisk, simply whisk or rotate it within a mixture of warm water and dish soap to remove and cleanse the bristles and branches of the whisk. Rinse it with hot water to remove any soap substance and allow it to air dry. It will then be ready for the next task.