1. Place loose tea into a tea ball or 100-percent cotton cheesecloth, tying with a string. (Do not use decaffeinated, green, or herbal teas.) Put into a 2-quart clear glass container. Add cold water. Cover and let stand in sunlight or at room temperature for 2 to 3 hours. (Keep the container away from combustible materials. Sunlight coming through glass and liquid can concentrate a beam of light that may start a fire.)
2. Remove tea ball or bags. Serve over ice or refrigerate immediately. If desired, serve with lemon wedges. Store in the refrigerator and use within 24 hours.