Rotovap uses | International Cannagraphic Magazine Forums
May 05, 2020 · Wash, peel, and boil the potato as you would for mashed potatoes, reserving the water. Let the water cool. Pour 1 1/2 cups of the reserved, cooled potato water into a one-quart jar. Gently stir in sugar and flour, mixing until smooth. Cover the jar with a piece of cheesecloth or paper towel, and secure it with a mason jar ring or elastic band.