USA: Authorities Advise Against Coffee in 11 States During Heat

Heat danger: In eleven US states, authorities have warned against the consumption of coffee.

In light of extreme temperatures, US weather authorities issued new heat warnings on July 14, 2025, for parts of California, Nevada, Oregon, Arizona, and Utah. Less acute heat warnings are also in effect for other states like Florida, Georgia, Mississippi, and Idaho. In affected areas, temperatures of up to 50 degrees Celsius are expected – particularly in Death Valley and parts of Arizona and Utah.

Recommendation: Water instead of coffee or alcohol

The US agency National Weather Service (NWS) strongly advises against consuming caffeinated or alcoholic beverages. According to meteorologists, these could accelerate fluid loss and increase the risk of heat-related illnesses. Instead, water or electrolyte-containing drinks should be consumed.

Heat consequences: More than 700 deaths annually

The US health agency CDC warns that extreme heat can lead to serious health problems. Particularly at risk are the elderly, children, and people with pre-existing conditions. Typical symptoms of heat exhaustion include heavy sweating, muscle cramps, dizziness, or nausea. According to the CDC, over 700 people die annually in the USA due to the effects of extreme heat.

Regional impacts of the heatwave

In Las Vegas, temperatures of up to 46 degrees Celsius have been recorded, and in parts of Arizona, even up to 48 degrees. The western part of California and the southern part of Oregon are also experiencing historic heat levels. The heatwave also increases ground-level ozone pollution, which can promote additional respiratory diseases.

The NWS regularly updates its forecasts via website and social media. The current warnings are in effect at least until Wednesday evening.

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