Tea Acidity, Reflux and Sour Black Tea Choices
Tea is generally less acidic than coffee, but the range is wide. Recorded pH values run about 3.1 to 6 for black tea, 5.9 to 8.2 for oolong, and 6.9 to 9.7 for white, yellow and green tea. Caffeine also relaxes the esophageal sphincter, which can worsen reflux regardless of pH, and tooth pain after drinking tea may relate to acidity too.
Brewing variables shift the result as much as the leaf: how much tea is used, water temperature, steeping time, and whether bags are used. People managing heartburn can steer toward less acidic types and shorter, cooler steeps. The same caffeine and acid questions come up with black coffee and cough, where the drink may irritate rather than soothe.
Whether tea is acidic is especially crucial for people suffering from heartburn or acid reflux. The pH value varies significantly among different types of tea; black tea is on the acidic side, while green tea may be close to neutral or even alkaline. The factors affecting the acidity of brewed tea go far beyond the type of tea—the amount of leaves used, brewing temperature, steeping time, and whether tea bags are used all influence the final result. In addition, the caffeine in tea relaxes the esophageal sphincter, which may worsen reflux symptoms. If toothache occurs after drinking tea, it may also be related to acidity. This article will systematically sort out the relationship between tea and acidity, and include recommendations for sour black teas, helping coffee and tea lovers enjoy flavor while also taking health into account.
For people with heartburn or acid reflux issues, the pH value of tea is an indicator that cannot be ignored. Only by understanding which factors affect the acidity of tea can you choose a suitable drink with greater peace of mind.
Like the vast majority of foods and beverages, tea also has a certain degree of acidity. Unless a doctor advises you to adjust your diet due to heartburn or reflux problems, most people may never have paid attention to the acid-base level of tea.
The Relationship Between Tea and Acid Reflux
Acidity is measured by pH value, and the pH value of every food and beverage is different. The daily diet therefore affects the body's overall pH environment. To reduce or avoid the discomfort caused by acid reflux, pH value needs to be managed, specifically by avoiding acidic foods and drinks while consuming more alkaline foods.
So is tea acidic? Overall, tea is less acidic than coffee. A cup of black tea has a moderate level of acidity, while green tea may range from moderately acidic all the way to alkaline. However, pH value varies with the type of tea, and the numerical ranges recorded in various research literature are also quite broad. The following are the observed pH value ranges for different types of tea:
Black tea: 3.1 to 6
Oolong tea: 5.9 to 8.2
White tea, yellow tea, green tea: 6.9 to 9.7
The reason the observed results differ so much is that the actual pH value of tea is affected by many factors together, and is not determined solely by the type of tea.
Variables Affecting pH Value
Besides the tea variety, the following factors also change the acidity of tea: the amount of tea used, whether tea bags or loose tea are used, brewing temperature, and steeping time.
Amount of Tea Used
The pH value of a cup of tea is roughly the result of a balance between water (neutral) and the substances extracted from the tea. If the tea you brew is itself on the acidic side, then the more tea you use, the stronger the acidity of the brewed tea will be.
Tea Bags vs. Loose Tea
The tea leaves in tea bags are usually cut and crushed, so they release flavor more quickly and intensively. High-quality loose tea consists of whole leaves and buds, slowly releasing flavor and acidity over multiple infusions. For this reason, tea brewed from tea bags often has more prominent acidity.
Temperature and Time
Assuming the tea you prepare is itself on the acidic side, then brewing temperature and steeping time will further amplify this acidic tendency.
Caffeine in Tea and Heartburn
What exactly is heartburn? What does gastroesophageal reflux disease refer to?
Heartburn is a term used to describe the symptoms of acid reflux, which may be accompanied by coughing, chest pain, or a burning sensation. Occasional heartburn can often be relieved through home care, dietary, and lifestyle adjustments. But if symptoms persist over the long term, it may be caused by gastroesophageal reflux disease (GERD), which requires more systematic medication and treatment intervention.
Also worthy of attention is the caffeine in tea. Caffeine relaxes the lower esophageal sphincter (LES), making it easy for stomach acid to flow back into the esophagus, thereby triggering heartburn.
You can choose low-caffeine or caffeine-free coffee and tea. If you want to further reduce caffeine intake, you might discard the first infusion of tea, because most of the caffeine has already dissolved out during the first steeping.
Tea Acidity and Toothache
If you feel toothache after drinking tea, acidity may also be the culprit behind it. You can drink a cup of hot water as a simple test: if the hot water does not trigger pain, then sensitivity to hot drinks can basically be ruled out. In that case, the likelihood that the acidity in tea is causing the toothache is very high. At this point, it is advisable to see a dentist as soon as possible to address the underlying oral problem.
For drinkers who prefer sour black tea, Front Street Coffee has recommended several black teas that are somewhat sour in flavor but excellently balanced, such as regional black teas with citrus and berry notes, whose acidity is bright without being sharp, suitable for everyday plain drinking. Front Street Coffee also reminds that if the stomach and intestines are relatively sensitive, you may give priority to black tea varieties with lower acidity, and appropriately reduce the amount of tea used and shorten the steeping time, so as to lower the overall acidity of the brewed tea.
The above content is compiled by CoffeeHunters, a coffee news website.
