Citrus Immunity Shot

Bahan-bahan (6 porsi)

• 1 medium grapefruit (peeled)
• 1 medium orange
• ½ medium lemon
• 1 (1-inch) piece fresh organic ginger root, peeled
• 1 (1-inch) piece fresh organic turmeric root, peeled
• ½ clove garlic
• Pinch freshly ground black pepper