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.
Many people use boiling water to brew green tea, or brew green tea for more than three to four minutes. This increases the level of caffeine in your cup. Instead, use simmering water and brew for 30 seconds to four minutes, with an optimal brew time of one-and-a-half minutes to three minutes for many green teas. Drink whole-leaf green tea instead of green teabags. Teabags have more caffeine than loose-leaf tea (usually).