An easy homemade soda pop recipe that's a traditional Finnish summer beverage.
Boil water. Skin peel off lemons, slice off pith (white part). Slice lemons thinly, discarding seeds.
Add sugar, lemon peel, lemon slices and hops to boiling water. Boil for 1-2 minutes.
Cool mixture to room temperature and add yeast. Let stand, covered, at room temperature for about 24 hours (until lemon slices and hops have risen to the top of the mixture).
Pour through strainer or cheesecloth. Put into bottles, adding two or three raisins to each bottle.
Store in cool room until raisins rise to the top of the bottles (3-4 days). Move to fridge and enjoy!
Original recipe calls for seven cups of sugar, but I prefer using a little less. Use a blend of white, yellow and brown sugars to suit your taste.