Ingredients:
- 14 cups water
- 1 cup brown sugar
- 1 cup plus 4 teaspoons sugar, divided
- 2 lemons (organic, if possible), washed and very thinly sliced
- ⅛ teaspoon yeast
- 20 raisins
Instructions:
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In a large pot, bring the water to a boil.
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Add the brown sugar and 1 cup of the white sugar. Stir until completely dissolved.
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Add the thinly sliced lemons to the pot. Stir and let the mixture cool until it reaches lukewarm temperature.
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Transfer the liquid into a nonreactive (non-metallic) container.
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Sprinkle the yeast over the liquid and stir gently to combine.
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Partially cover the container and let it sit at room temperature for 8 hours or overnight. During this time, tiny bubbles should form around the perimeter of the liquid, indicating fermentation.
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After fermentation, strain the liquid into sterilized bottles to remove the lemon slices and any sediment.
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To each bottle, add 1 teaspoon of sugar per quart of liquid and 4-5 raisins.
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Cork the bottles tightly.
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Place the bottles in a cool, dark place at room temperature. Open the bottles at least once a day to release excess pressure and prevent them from bursting. This step is crucial for safety during fermentation.
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Allow the bottles to ferment for several days until the raisins have risen to the top and the liquid is fizzy. This usually takes about 2-3 days, but you can adjust based on the desired level of carbonation.
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Once fermented to your liking, refrigerate the bottles to halt fermentation and chill the lemonade.
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Before serving, you can optionally release some pressure from the bottles if necessary, although refrigeration usually stops further fermentation.
Enjoy your homemade Finnish fermented lemonade, Sima!