Coffee Vs Tea: Which Caffeinated Drink Is Less Acidic? - Tasting Table
Briefly

Coffee and tea can both be caffeinated, but coffee is typically more acidic, averaging a pH between 4.85 and 5.13. In contrast, green and herbal teas score higher, around 6 to 10 on the pH scale. Health impacts arise from these acidity levels; drinks with lower pH can trigger acid reflux or tooth enamel erosion. Additionally, factors like brewing style and ingredients like sugar or lemon can alter acidity, with milk and water helping to neutralize it. Understanding these nuances can aid in making healthier beverage choices.
Coffee generally has a lower pH averaging between 4.85 and 5.13, making it more acidic than most teas, excluding citrus-infused options.
Health-wise, the acidity difference matters; low-pH drinks can worsen conditions like acid reflux and erode tooth enamel, causing adverse effects.
Brewing methods and added ingredients greatly influence acidity; for instance, sugar is neutral, but adding lemon can make a drink more acidic.
Notably, herbal teas are mild at around pH 6 or 7, while decaffeinated coffee tends to be less acidic than regular coffee.
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