Somewhere I found how to use Stevia (the plant whose leaves are many times sweeter than sugar):
STEVIA
Step 1
Pick off the leaves only of the stevia plant, and lay them between two paper towels to create a drying rack.
Step 2
Place the drying rack in the sun for several days until the leaves feel completely dry and crispy to the touch.
Step 3
Grind the leaves with a mortar and pestle or spice grinder until you have a fine stevia powder.
Step 4
Use this stevia powder in recipes as a substitute sweetener for sugar, starting with 1 tsp. to replace 1 cup of sugar and increasing as desired. Adjust the amount to taste as sweetness depends on the time of year harvested, the variety of plant and the local growing conditions.
Step 5
Alternatively, steep one or two fresh leaves in the hot water for your tea, and remove the leaves when you strain the tea or pull out the bag to sweeten a cup of tea.
Here are more directions to use Stevia:
1
Gather branches of stevia plants, bind them using string or rubber bands, and hang them in a dry, cool place on hooks or nails. The leaves will become dry and crisp after about a week. Strip the dry leaves from the branches, grind the stevia leaves using a coffee grinder or a mortar and pestle, and then store the leaves in a covered container, such as a glass jar.
2
Use ground stevia leaves in place of sugar in your food recipes. According to Kansas State University Research and Extension, you can substitute 3/8 tsp. of dry, ground-leaf stevia for 1 tbsp. of sugar, and you can also use 2 tbsp. of ground-leaf stevia to equal 1 cup of sugar. Sprinkle ground stevia on your cereal or in your coffee or tea as a sweetener. The Food and Drug Administration approved stevia for use in the U.S. as a sweetener as of 2008.
3
Eat stevia leaves right off your stevia plants. You can also eat stevia leaves along with mint leaves for a treat.
4
Make stevia tea with fresh or loose, dried stevia leaves. Some people claim stevia helps with digestion and soothes stomach upset when consumed in tea form.
5
Mix ¼ cup ground stevia leaves with 1 cup warm water in a glass jar to make your own stevia liquid concentrate. Jan London, author of “Coconut Cuisine, Featuring Stevia,” suggests you allow the ground stevia and water mixture to sit for 24 to 48 hours, and then strain the solution through cheese cloth. Keep the liquid concentrate refrigerated.
6
Apply stevia liquid to your face as a mask. Although not yet supported by scientific studies stevia might be able to help treat premature aging, acne and other skin problems. Rub a few drops of the whole-leaf stevia liquid concentrate on your skin, leave it on for 30 to 60 minutes, then rinse off. You can also put a drop on a pimple or mouth sore and let it dry.
7
Use stevia plants safely if you have diabetes. Stevia has a low glycemic index, meaning stevia releases glucose slowly into the bloodstream. According to the National Institutes of Health, a 1986 three-day study of 16 normal volunteers at the Universidade de Maringa in Brazil showed extract from stevia leaves significantly reduced blood glucose levels.
8
Use stevia if you have hypertension. Two long-term studies—one a year in length and the other two years long—at Massachusetts General Hospital in April 2010 revealed stevia may effectively lower blood pressure, according to the National Institutes of Health.