When reading scientific papers I always note that the lab assistants are very peculiar about the way they add reagents, drop by drop with second intervals, for example. I have been curious as to how critical this is? Anyway, to avoid problems with different dissolution times, I always prepare the reagents, by dissolving in bi-distilled water, in the case of gelatin, plant extracts, etc., I even heat it up. Is that being overzealous, or is there some sense in that?