Most of the fuel on-board a rocket is used in the first few minutes of the mission to achieve an escape velocity of at least 25,000 mph (7 miles per second or 40,000 km/h)âthe speed a rocket must theoretically attain to escape Earth's gravity.
Traditionally Japanese green teas and spring teas are brewed at lower temperatures (160Â°F to 170Â°F) and standard Chinese green teas at higher temperatures (170Â°F to 180Â°F). Pre-warm the teapot or cup (optional): Pour a small amount of boiling water into the pot or cup. When the pot or cup is warm, pour out the water.
If the water is too hot or if the tea has been steeped for too long, it can impart bitterness. If the water is too cool, the full flavor of the tea won't be properly extracted. The ideal steeping time varies according to the size and shape of the leaves, the grade of the tea, and when the tea was harvested. Green tea is generally heated to 140 to 185 F and is brewed for one to three minutes. Several studies suggest that the brewing method can alter the catechin content of a cup of tea.