Chapter 29

Boiled Coffee

An Arctic Example of Potential Residual and Unmeasured Confounding in Coffee Epidemiology

Lena Maria Nilsson     Public Health and Clinical Medicine, Nutritional Research, and Arctic Research Centre, Umeå University, Umeå, Sweden

Abstract

This is the first interdisciplinary description of the boiled coffee culture of the Scandinavian Arctic. This culture is a good example of residual or unmeasured confounding in a population with two heterogeneous coffee cultures. Though filtered coffee is the most common caffeine brew in this area today, boiled coffee—traditionally prepared on a stove top or open fire—still plays an important role in the population. There are chemical differences between boiled coffee and drip-filtered coffee ...

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