First, taste all the virgin oil types that you have
. Take note of the characteristic and intensity of bitterness. Put a note if the type of oil is close to the flavor you desire. This is where the trial and error begins. Start blending by mixing varieties of oil. You can mix by cups or tablespoons. For example, you can mix 50% of oil type A and then 50% of oil type B or one cup against one cup. Remember to make a note of everything. After several blending, taste the different blends and then decide.