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How fast caffeine is eliminated from the body depends on your half-life, which is often about 3–7 hours in adults.

Caffeine pills often feel noticeable in 15 to 45 minutes, with peak effects around 30 to 120 minutes after you take them.

Shake an espresso martini for 12–15 seconds with plenty of ice until the tin turns frosty and the drink sounds smooth.

Smooth Move tea often triggers a bowel movement in 6–12 hours, so a bedtime cup is meant to work by morning.

Coffee plants usually start producing cherries in year 3 or 4 after planting, with speed shaped by variety, starting size, and care.

Descaling a Nespresso machine usually takes 20–30 minutes from setup to final rinse, with the timed cycle itself near 20 minutes on many models.

A bianco latte lasts up to 2 hours at room temp, or 1–2 days in the fridge; discard it after that.

Opened coffee liqueur keeps its best taste for 6–24 months, depending on ingredients and storage, and often stays drinkable longer.

Starbucks cold brew concentrate stays drinkable for up to 14 days after opening when it’s kept sealed in the fridge.

Caffeine can tighten blood vessels for 1-3 hours, with the peak change in the first hour after one serving.