Does iced coffee have more caffeine than hot coffee?

Iced coffee generally does not have more caffeine than hot coffee. The amount of caffeine in coffee is determined primarily by the type and amount of coffee beans used, the brewing method, and the serving size. On average, a cup of hot coffee and a cup of iced coffee made from the same type and amount of coffee grounds and water will have similar caffeine content, assuming similar serving sizes.

Iced coffee is typically made by brewing hot coffee and then chilling it, or by using a cold brewing method that extracts caffeine and flavor over a longer period of time. The chilling process does not significantly affect the caffeine content. Some iced coffee drinks may have added ingredients like milk or sweeteners, which do not contain caffeine.

However, there can be variations. For example, if a person uses more coffee grounds or a longer brewing time for their hot coffee, it may have a higher caffeine content than iced coffee made with less grounds or a shorter brewing time. Additionally, some coffee shops or cafes may use different ratios of coffee and water, or specific coffee blends that naturally have higher caffeine content, for their iced coffee or hot coffee.

Overall, the caffeine content can vary depending on the specific recipe, brewing method, and serving size, rather than solely the temperature at which the coffee is consumed.