Put the required amount of fumadil into a mayonnaise jar (or other container) of very cold water. Cap it and shake it up. You can keep it cold in the 'fridge or freezer for a while, then shake it up again, till it's all dissolved completely. Then just add it to the already mixed sugar-water, which can be warm, and stir it all up. The fumadil doesn't mix well at all with anything but cooold water, IME. I hope this is helpful--J.