There are a lot of detailed guides to brewing tea on the web, like this one and this one. In an effort to simplify the rules at the expense of accuracy, I offer following table.
Tea TypeTemperatureBubble Size
| Delicate Green | 160°F | Shrimp Eyes |
| Green | 170°F | Crab Eyes |
| White | 180°F | Fish Eyes |
| Oolong | 190°F | Rope of Pearls |
| Black/Rooibos | 200°F | Raging Torrent |
Blurry Visions 