The ideal temperature for red/black tea is around 212F (boiling) & 190F for oolong tea.  Bring your kettle to a boil and let it sit off heat for a bit to lower the temperature. Water just off the boil for oolong is also acceptable.

Teapot

Can steep up to 2 times

16oz Teapot (473ml)

2 heaped teaspoons (6-8g) to 16oz (473ml) water for 3-5 minutes. 

24oz Teapot (710ml)

3 heaped teaspoons (10-12g) to 24oz (710ml) water for 3-5 minutes.

32oz Teapot (946ml) 

4 heaped teaspoons (14-16g) to 32oz (946ml) water for 3-5 minutes.

*If you take milk with your tea consider steeping for the maximum amount of time.  We don't recommend heating the milk up as it changes the flavor of the tea too drastically.

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Gongfu style

Can steep up to 8-10 times

100-125ml Gaiwan or Pot

2 heaped teaspoons (5-8g) to 100-125ml water at boiling (212F)  for 10-15 seconds.

With each steep add an extra 5-10 seconds.