Editor’s note: The information in this article should be taken as being presented for entertainment purposes only, since much of it has since been shown to be unproven scientifically.
Many people add milk to their tea, especially when drinking black teas. However milk, or even milk alternatives such as soy milk, have been said to greatly affect the quality and flavor of the tea you are drinking as well as reduce the potential health benefits of the tea leaves.
The first thing to consider when adding milk or milk alternatives to your tea is temperature. Dr. Stanley Segall, Professor Emeritus of Nutrition and Food Sciences at Drexel University in Philadelphia and spokesperson for the Institute of Food Technologists says of adding milk to tea, ““Changes in brewing temperature affect extraction of color- and flavor-responsible chemicals exponentially. Reaction rates generally double for every rise in temperature of 18 degrees Fahrenheit and conversely decrease by the same factor when the temperature is lowered.”
So even when you add a small amount of milk to your tea, you are lowering the temperature drastically enough that essentially, the tea leaves don’t release much more flavor. Pre-heating your milk before adding it to the tea therefore, is recommended to keep the full flavor of the tea.
If you are drinking tea solely, or mainly for it’s health benefits, it would be wise to avoid milk completely as some studies have reported that the caseins in the milk completely destroyed all the wonderful antioxidants provided by the catechins in the tea leaves. This may partially explain why there is a higher risk of heart disease in countries where adding milk to your tea is more prevalent, such as in the United Kingdom and the United States, as opposed to countries where adding milk products to tea is less common, such as China or Japan.
However, June Davison, cardiac nurse at the British Heart Foundation (BHF), wisely reminds us that: “”It is difficult to say from this small study the impact of adding a drop of milk to your tea can make. Leaving milk out of your tea is far less likely to help protect your heart health than other measures, such as taking regular exercise, avoiding smoking and eating a healthy balanced diet.”
[Editor’s note: Our blog is chock full of great articles on this topic. Use our search feature to find them!]
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