In soaps, the colour can be added to your colour in four main ways: one to two tsp per kg of soap batter on the track; Prepare a cold infusion with nine parts oil and one part powder; Add oil with equal preference to the oil, in which both are heated to low heat for an hour or more and left overnight; The powder is boiled in water and using tea instead of water. SkyMorn Providing pure natural annatto powder for clothes, fabric and soap. Bixa Orellana is a shrub native to a region between northern South America and Mexico. Bixa Orellana is grown in many countries worldwide. The tree is best known as the source of annatto, a natural orange-red condiment also called achiote or bijol obtained from the waxy arils that cover its seeds.