Arizona Green Tea vs Pure Leaf sweet tea: caffeine compared
Pure Leaf sweet tea (18.5 oz) has 54 mg of caffeine, 37 mg more than Arizona Green Tea (23 oz can, 17 mg) — 3.2× as much per serving. Per fluid ounce, Pure Leaf sweet tea is the stronger drink: 2.9 mg/oz versus 0.7 mg/oz.
| Arizona Green Tea | Pure Leaf sweet tea | |
|---|---|---|
| Serving | 23 oz can | 18.5 oz |
| Caffeine per serving | 17 mg | 54 mg |
| Per fl oz | 0.7 mg | 2.9 mg |
| Share of 400 mg/day | 4% | 14% |
| Servings to reach 400 mg | 23.5 | 7.4 |
| Hours until under 50 mg | already under | 0.6 h |
| Last one for an 11 PM bedtime · standard (50 mg) | 11:00 PM | 10:27 PM |
| Last one for an 11 PM bedtime · sensitive (25 mg) | 11:00 PM | 5:27 PM |
| Share of the 200 mg pregnancy limit | 8% | 27% |
One serving of each, over 16 hours
Common questions
Which has more caffeine, Arizona Green Tea or Pure Leaf sweet tea?
Pure Leaf sweet tea (18.5 oz) has about 54 mg versus 17 mg in Arizona Green Tea (23 oz can): 37 mg more, or 3.2× as much.
Which is stronger per ounce, Arizona Green Tea or Pure Leaf sweet tea?
Pure Leaf sweet tea: about 2.9 mg per fl oz versus 0.7 mg for Arizona Green Tea. Serving size decides the total you actually drink.
How many Arizona Green Tea servings equal one Pure Leaf sweet tea?
About 3.2 servings of Arizona Green Tea (23 oz can) match the caffeine in one Pure Leaf sweet tea (18.5 oz).
When should I stop drinking Arizona Green Tea or Pure Leaf sweet tea before bed?
For an 11 PM bedtime with a 50 mg limit and a 5-hour half-life: last Arizona Green Tea by 11:00 PM, last Pure Leaf sweet tea by 10:27 PM. Half-life varies from about 1.5 to 9.5 hours between people.
Method
Caffeine per labeled serving, from the same drink table every calculator here uses (FDA/USDA reference amounts and manufacturer labels; see caffeine content of every drink). Brewed drinks vary batch to batch, so read these as typical values. Decay uses a 5-hour average half-life with a 45-minute absorption ramp; cutoff = bedtime − 5 h × log₂(dose ÷ limit). Percentages use the FDA's 400 mg/day figure for healthy adults and the 200 mg/day limit ACOG gives for pregnancy.
Source — Arizona Green Tea: AriZona FAQ (Green Tea: 8–10 mg per 12 oz), checked 2026-10-13. Scaled to the 23 oz can: 15–19 mg; midpoint used. Published range 15–19 mg.
Source — Pure Leaf sweet tea: PepsiCo Product Facts — Pure Leaf Sweet Tea 18.5 fl oz, checked 2026-10-13.