If you have a weak stomach, be sure to pay attention to these points before drinking tea
Try not to drink tea in the morning, let your stomach rest well. Even if you do drink, only drink ripe tea, and try not to drink too many cups. Personally, I suggest that depending on your individual constitution and your stomach's tolerance, anywhere from half a brew (6 cups) to one brew (12 cups).
From after lunch until three o'clock, it is advisable not to drink. Do not drink within 1 hour after a meal. Before drinking, do not eat heavy meals that are hard to digest, or carbonated drinks like beer.
From around three or four in the afternoon until before five, it is advisable to drink one or two kinds of tea depending on your stomach's tolerance. After five, it is advisable to let your stomach rest and have dinner. Drinking tea in the afternoon can be said to be when your body is in the best condition, but for very fresh new tea, it is advisable to drink at most one kind; drinking some mid-aged tea would be better.
After dinner, it is advisable to rest for more than 1 hour, and around 8:30 drink a brew of older tea. For new tea from ancient trees, it is advisable to control the amount of leaves used, and try not to brew it too strong. At most, it is advisable to drink two brews of raw tea, or one raw and one ripe. Drinking ripe tea will not make you so hungry that you want a late-night snack. Because scientifically speaking, people had best not eat after 9 p.m.
As for controlling the amount of tea, I suggest everyone keep it within the range of 'tasting.' Do not use a big 180CC pot for just one or two people; one brew of 120CC is enough. Using an 8-gram gaiwan is also enough for 2 to 3 people to drink. I especially do not support the mindset of refusing to waste anything just because the tea is good. At most it is just one brew of tea; is it worth clogging up your own stomach?
For friends who are already suffering from indigestion, or friends with mild gastritis, I suggest that after you are cured, have a vegetarian dinner and stop there, eat fewer barbecued late-night snacks, drink less beer and baijiu, and before drinking tea, eat foods that are as light and easy to digest as possible. If you feel uncomfortable after drinking tea, at most eat two soda crackers to settle your stomach.
Final summary: friends with naturally good stomachs, I envy you! Drink however you like. Friends with poor stomachs, develop habits and proceed step by step, and we can likewise nurse ourselves back to good health. It is just that drinking tea cannot be too aggressive. To be honest, back when I was learning about tea and drinking new tea, it did great harm to my stomach. Back then I was also the type to have late-night barbecue and chug beer bottle to bottle, hahaha. Now tea friends have given me the nickname 'Huang Four Brews' - for one tea I drink only four infusions and then stop, haha, I cannot even cry if I wanted to.