A large iced coffee at Tim Hortons contains 270 mg of caffeine.
A large iced coffee at Tim Hortons contains 270 mg of caffeine, making it one of the stronger coffee options on their menu. This 20-ounce beverage is brewed with premium coffee and served over ice, providing a substantial caffeine boost for those seeking an energy lift. The caffeine content is significantly higher than their small size (140 mg) and medium size (205 mg), offering nearly double the caffeine of the small option.
Caffeine content comparison across Tim Hortons iced coffee sizes
| Size | Ounces | Caffeine Content |
|---|---|---|
| Small | 10 oz | 140 mg |
| Medium | 14 oz | 205 mg |
| Large | 20 oz | 270 mg |
Factors affecting caffeine levels in iced coffee
- Brewing time and temperature impact extraction
- Coffee bean type and roast level affect caffeine concentration
- Ice melt can slightly dilute caffeine content as drink sits
- Customization options like extra shots increase total caffeine
Health considerations for high caffeine intake
The 270 mg of caffeine in a large Tim Hortons iced coffee exceeds the FDA's recommended daily limit of 400 mg for most adults. Consuming this amount provides about 68% of the maximum suggested intake. Individuals sensitive to caffeine or with certain medical conditions should consider smaller sizes or alternative beverages to manage their caffeine consumption.