When properly made one fluid ounce of fluid extract equals one ounce of fresh herb. Always use accurate measurements to ensure consistency and the effect of a given dose. Put into pan with 2 quarts water. Bring to a boil and then cover pan and allow to simmer until water is reduced to one quart. Take off heat and strain through a cloth squeezing out all excess liquid.
Place remains of herb back into pan and add one quart water.
Save fluid that was strained and put to one side. Reheat pan to boil and simmer herbs again with the pan covered until liquid is reduced by half to 1 pint. Strain through a cloth discarding the solid remains. Now combine the two strained liquids, return to the large pan and bring to a boil. Cover the pan and simmer until liquid is reduced to 2 fluid ounces.