Russian Kvas Recipe

Bahan-bahan (20 porsi)

• 5 Liters or 5.28 Quarts (or 21 cups Warm Water)
• 10 Tbsp Kvas Concentrate
• 1 3/4 cup sugar
• 1/2 Tbsp Active Dry Yeast
• 10 raisins
• 1/2 loaf of Rye Bread (cut into 1" squares and toasted)