This would explain common folklore such as that soaking feet in tannic acid (or strong tea) can treat or prevent blisters, foot odor and rough, dry feet. Hazards. Tannic acid could cause potential health hazards such as damage to the eye, skin, respiratory tract, and gastrointestinal tract.
Tannic acid is safe when used in the amounts found in foods. However, tannic acid seems UNSAFE when applied to the skin to treat diaper rash, prickly heat, and minor burn or sunburn .
According to this analysis from 1965, there are several different acids in tea leaves: Succinic, oxalic, malic, citric, isocitric, and five unknown acids have been found at appreciable levels (>0·1 μequiv./g. fresh wt.) in tea shoot tips. The major acids quantitatively were oxalic, malic and citric acids.
Tannic acid is an astringent agent. However, there is a difference between tannins and tannic acid, Tannic acid is not present in tea, tea contains tannins other than tannic acid. Tannins health benefits. Tannins are a broad class of compounds that are present in tea, and red wine.
Mar 21, 2017· Black tea might stain your teeth, so if that bothers you, regular dental cleanings will help. Other healthy, low-acid teas you may want to try include dandelion, ginger, saffron, and holy basil .
Full Answer. Many teas contain dominant anions, which are the acidic compounds, are found in tea. Examples include oxalates which can be found in vegetables and fruits, and citrates which are organic compounds found in citrus fruits. Citric acid is often added to teas to adapt the taste, and for those looking to avoid acidic drinks should avoid this addition.
Acid Reflux: 3 Caffeine-Free Teas to Ease Symptoms | HealthCentral
Mar 10, 2009· Tea is known to contain tannins and not tannic acid as is incorrectly stated by many people at times. In fact tannic acid is used to treat burns and blisters and in cases where tannic acid was not available strong lukewarm tea has been used as a home remedy.
Jul 20, 2017· Tea is not acidic enough to cause any harm. Acidity is usually measured by pH, with pure water being given a pH of 7, and acids being given lower pH's, ranging from 1 (stomach acid) to 3-4 (fruit juices), to just under 6 for very mild acids. A recent study found the acidity of black tea to be about 4.9.
Coffee beans grown in very high altitudes and mineral-rich soil often produce more acidity. The acid content also depends on the type and length of bean roasting and brewing method. Tea's Acidity. Tea contains tannic acid, which becomes bitterer as the tea is steeped.
Tea and GERD. The longer the tea is steeped, the more caffeine there will be in the cup. It can be difficult to determine whether your acid reflux is from caffeine or something else within a particular type of tea product. There are a few caveats. While the majority of studies have focused on black (caffeinated) tea…