Q) Can I make my own Stevia Extract?
A) Yes. A liquid extract can be made from the whole Stevia leaves or from the green herbal Stevia powder. Simply combine a measured portion of Stevia leaves or herbal powder with pure USP grain alcohol (Brand, or Scotch will also do) and let the mixture sit for 24 hours. Filter the liquid from the leaves or powder residue and dilute to taste using pure water. Note that the alcohol content can be reduced by very slowly heating (not boiling) the extract and allowing the alcohol to evaporate off. A pure water extract can be similarly prepared, but will not extract quite as much of the sweet glycosides as will the alcohol. Either liquid extract can be cooked down and concentrated into a syrup.
Q) What is the replacement factor for Stevia herbal powder and extract in terms of common table sugar?
A) Since Stevia is 10 to 15 times sweeter than sugar, this is a fair, if approximate, replacement factor. Since the crude herb may vary in strength, some experimentation may be necessary. The high stevioside extracts are between 200-300 times sweeter than sugar and should be used sparingly. Unfortunately, FDA labelling guidelines may prevent manufacturers from providing a specific replacement factor.
Q) What cant I do with Stevia?
A) Stevia does not caramelize as sugar does. Meringues may also be difficult since Stevia does not brown or crystalize as sugar does.
Q) Will Stevia change the color of my food?
A) The green herbal powder may impart a slight amount of color to your food, depending on how much you use in your recipe. If you are concerned about color, I would suggest that you use the white powdered extract or a similar "clear" liquid extract of Stevia.
Q) Where can I buy Stevia herbal powder and extract?
A) At your local natural food store. As Stevia gains consumer acceptance, it may also begin to appear in supermarkets and grocery stores, but probably only in its refined form.
Q) What is the future of Stevia?
A) Very bright, as long as the gene stock of the Native Paraguay Stevia Rebaudiana species is preserved in the wild. Overharvesting and foreign transplantation has depleted this stock which contains the greatest possible gene diversity, essential to the strength and continuance of the species.