How do I differentiate between a good tea and bad tea.

I recently went trip to Kerala, where I tasted the black tea.  I really loved them.

What was happened and what made me to differentiate it.

At morning 7am in Kerala I drank Black Tea Lemon flavored. After one hour I came there to have a morning tiffin and had black tea.  Usually if I take black tea every one hour, it tends me to vomitting and mostly I won't take tea that much.

     On that day suddenly when I tried black tea after one hour, I dint get any vomitting sensation. Awesome!

And I suddenly realised that there is lot of difference between what we buy a tea here and the tea in the tea estates.
And I bought 4 packets of tea from Munnar. 

Bad Tea.

If you look at the below image.  I literally dipped only one dips but it has a huge strongness.


















I really got tensed and really suffered from stomach pain due to this.

If you look at the below image this shows the clear picture.  It tooks 10 to 15 minutes to get the strongness of the tea.






































My Goodness.  These two images got the strongness only after 10-15 minutes.  Don't you people find the difference in it.

If any one have the same problem, Let me know about it.

Happy Drinking.

Charu