View unanswered posts | View active topics It is currently Thu Nov 21, 2024 10:02 pm



Post new topic Reply to topic  [ 1 post ] 
 caffeine content of white tea 
Author Message

Joined: Mon Sep 27, 2010 11:05 am
Posts: 13
Post Re: caffeine content of white tea
Hello


The simple answer is: it depends. There are two main variables that influence the caffeine content of a cup of brewed tea: the type of leaf and the tea preparation method.On average, tea leaves contain 3% caffeine by weight, although this can range from 1.4% to 4.5%. Many factors determine the caffeine content in the dry leaf, such as soil chemistry, altitude, type of tea plant, position of the leaf on the tea bush and cultivation practices. For example, the young bud and first leaf generally have slightly more caffeine than leaves picked from the lower part of the tea bush. The leaves from the small leaf China tea plant (camellia sinensis) tend to have lower caffeine levels than the leaves from the large leaf Assam tea plant (camellia assamica). One factor that does not impact caffeine level is the level of oxidation. Green, oolong, black and white teas all contain caffeine. No one category of tea has more or less caffeine than another. Again, it all depends on the particular tea in question.There are many parameters that affect caffeine content such as the amount of leaf, the leaf particle size, water temperature and steeping time. For example, tea steeped in hot water for a longer time will release more of its caffeine than tea steeped with cooler water for a shorter period. A smaller leaf tea will release more of its caffeine than a larger leaf tea.


Mon Sep 27, 2010 11:58 am
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by Vjacheslav Trushkin for Free Forums/DivisionCore.