Green tea is known to reduce acid reflux symptoms temporarily.
There are many such drinks which are used as a quick fix for acidity or acid reflux.
For a longtime fix though, we need to make lifestyle changes to improve the toning of the LES muscle, reduce excess secretion of acid in the stomach and relax the agitated nervous system.
Drinking excess amounts of green tea increases acid in the stomach due to high caffeine content. In fact, drinking more than three cups of green tea in a day will cause acidity, bloating, or acid reflux. Consuming excess green tea also leads to mineral deficiency, as it contains tannin that binds minerals like iron, hindering its absorption in the body.
Regular and long-term intake of caffeine leads to health problems such as headache, sleeping disorders, irritability, anxiety and heartburn among others.
So, focus on restoring gut health rather than consuming drinks like green tea for short lived fixes.