How much caffeine is in Bottled black iced tea?

How Bottled black iced tea compares

• Strength: 11 mg per 100 ml.
• One 16 fl oz bottle (473 g) has as much caffeine as about half a cup of brewed coffee, which has 94.8 mg per 8 fl oz cup.
• Of the 18 other teas in our tea chart, 4 have more caffeine per serving and 14 have less.

Caffeine by size

How long does Bottled black iced tea stay in your system?

Our model halves caffeine every 5 hours for average metabolism, and every 3 or 8 hours for fast or slow metabolism. From one 16 fl oz bottle (473 g) of Bottled black iced tea (52 mg), about 26 mg is still in your body 5 hours later and about 13 mg after 10 hours. If you clear caffeine slowly (an 8-hour half-life), about 22 mg is left after 10 hours.

Estimated caffeine left at 11:00 PM from one 16 fl oz bottle (473 g) (52 mg), using a half-life of 5 hours for average metabolism and 3 to 8 hours for the range. How we calculate

How many fit in a day?

Reference amounts are for caffeine from all sources combined. Counted at the upper end of the stated amount, one serving at a time:

• Up to 400 mg a day for most healthy adults (FDA, EFSA): about 7 servings.
• Up to 200 mg at one time for healthy adults (EFSA): about 3 servings in one go.
• Up to 200 mg a day in pregnancy (EFSA, NHS): about 3 servings.

These are reference amounts for groups of people, not a personal limit. Some people feel jittery or sleep worse on much less. See the cutoff calculator for timing.

Good to know

USDA lists unsweetened bottled green tea at 12 mg per 100 g, close to the 11 mg for bottled black tea.

How the serving amount was worked out: USDA lists 11 mg per 100 g in both records; 473 g × 0.11 = 52.0 mg (FDC 174144); 360 g × 0.11 = 39.6 mg (FDC 2710531).

Bottled black iced tea vs other iced and bottled tea drinks

• Iced tea (brewed, unsweetened): Bottled black iced tea has less caffeine than iced tea (brewed, unsweetened) per 100 g (11 vs 20 mg). Bottled black iced tea: 52 mg per 16 fl oz bottle (473 g); Iced tea (brewed, unsweetened): 72 mg per Small drink (360 g).
• Lipton Iced Tea Lemon: Bottled black iced tea has more caffeine than Lipton Iced Tea Lemon per 100 ml (11 vs 4.2 mg). Bottled black iced tea: 52 mg per 16 fl oz bottle (473 g); Lipton Iced Tea Lemon: 21 mg per 16.9 fl oz bottle.
• Pure Leaf Sweet Tea: Bottled black iced tea has more caffeine than Pure Leaf Sweet Tea per 100 ml (11 vs 9.9 mg). Bottled black iced tea: 52 mg per 16 fl oz bottle (473 g); Pure Leaf Sweet Tea: 54 mg per 18.5 fl oz bottle. Per serving the order evens out, because the servings differ in size.

Common questions