Steeping green tea for too long or at high temperatures can produce a bitter cup. Brewing at 75 to 85°C for 2 to 3 minutes has been found to be the optimal condition.
Yes. Tea flavonoids which provide many health benefits (same as Catechins) are more active in acidic environment. Adding lemon juice to tea enhances the body's ability to absorb Catechins and also increases their stability.
Yes. Tea Catechin, an important and beneficial antioxidant, is absorbed better when your stomach is empty.