Dandelion Wine with Raisins

12 cups [3 L] dandelion heads 16 cups [4 L] boiling water 3 pounds [1.4 kg] sugar 2 oranges, sliced 2 lemons, sliced 1/2 cup [125 mL] raisins 2 packs [2 tablespoons / 30 mL] active dry yeast Sterilized glass bottles [with corks]	Pour boiling water over dandelion heads; leave to soak for 2 days. Strain. Add sugar, orange slices, lemon slices, raisins and soaked dry yeast. Leave to ferment for 2 weeks, stirring every day. Strain, bottle and lightly cover; after 3 weeks, tightly seal bottles with corks.