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Tea (rec.drink.tea) Discussion relating to tea, the world's second most consumed beverage (after water), made by infusing or boiling the leaves of the tea plant (C. sinensis or close relatives) in water.

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  #1 (permalink)  
Old 07-01-2008, 06:00 PM posted to rec.food.drink.tea
bookburn@yahoo.com
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Posts: 31
Default New lurker

I like the idea of tea because of the philosophy associated with it;
for me, that would be Taoism; but am into green tea because of a
cancer scare I had in '02. Had the bladder operation removing the
cancer and have been clear since, perhaps because of my change of
diet. Doctors mentioned taking Saw Palmetto, but nothing about
drinking green tea.

I looked up newsgroups talking about cancer diets and read about
Chinese green tea. A nurse who noted my intake of vitamins and
supplements commented that, yes green tea is drunk in China, and
Chinese have a low rate of bladder cancer, but they also have a higher
rate of stomach cancer. Doctor advised me to avoid tea with caffeine,
drink herbal instead.

Long story short, I drink daily a couple large mugs of Chinese green
tea, removing 80% of the caffeine with a 30 second blanch. To do
this, I heat to steaming filtered water in a pan, blanch the tea, pour
out the water, and pour in some pure distilled water I have heated to
only about 140 degree f, steeping the leaves at least twice more. So
far, I haven't invested in a tea pot or tried the caffeine-free tea
bags; but I may.

Mostly, I rely on local Asian stores for my supply, but to get Dragon
Well I've had to go on-line and pay the freight for 1lb bulk. After
looking over the 25K-some posts archived at this NG, I deduce that the
following retailers are a good bet: 1) Upton, 2) Culinary Teas, 3)
SpecialTeas.

Regards, bookburn





I
  #3 (permalink)  
Old 08-01-2008, 06:39 AM posted to rec.food.drink.tea
Ozzy
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Posts: 69
Default caffiene a carcinogen? (was New lurker)

Lewis Perin wrote in
news
....

Did that doctor imply that caffeine was carcinogenic? That would be
new to me.

....

That was unwelcome news to me, too, when a member of my cancer support
group said it too. However, googling provided

http://www.benbest.com/health/caffeine.html

"Nonetheless, more recent evidence does show a capacity
for caffeine to worsen the mutagenicity of ionizing
radiation and other carcinogenic agents through interference
with cell cycle control [MUTATION RESEARCH 532:85-102 (2003)]"


http://cancerres.aacrjournals.org/cgi/reprint/34/10/2720.pdf,
a paper which did exhaustive tests on golden hamsters,seemed also to
indicate that caffiene made more potent more standard carcinogens.


http://carcin.oxfordjournals.org/cgi/content/abstract/13/8/1379, 1992,
"Effects of caffeine, nicotine, ethanol and sodium selenite on
pancreatic carcinogenesis in hamsters...",

A Japanese study that showed a stastically significant increase in
cancer in hamsters that were injected with this toxic mix. Caffiene a
cancer "enabler" for the other carciogens...


http://www.inchem.org/documents/iarc/vol51/04-caffeine.html, 1991,
that states there there is inadequate evidence for the carcinogenicity
of caffiene (implicitly *by itself*) in both humans and experimental
animals.

-------------------

There are, as Winston Churchill said, three types of lies: lies, damned
lies, and statistics; and all of these studies are statistically based.
Yet I'm not going to alter my tea habits based on the above, and not
just because of tea's anti-cancer phenols, either. Life is just too
short to worry about everything.

Ozzy



  #4 (permalink)  
Old 08-01-2008, 01:42 PM posted to rec.food.drink.tea
DPM
external usenet poster
 
Posts: 96
Default caffiene a carcinogen? (was New lurker)

[snip]
There are, as Winston Churchill said, three types of lies: lies, damned
lies, and statistics;


Actually, I believe this quote was originally attributed to Benjamin
Disraeli.

Dean


  #5 (permalink)  
Old 08-01-2008, 03:38 PM posted to rec.food.drink.tea
Matti Lamprhey
external usenet poster
 
Posts: 3
Default caffiene a carcinogen? (was New lurker)

"DPM" wrote...
[snip]
There are, as Winston Churchill said, three types of lies: lies,
damned lies, and statistics;


Actually, I believe this quote was originally attributed to Benjamin
Disraeli.


Fuller story:
http://en.wikipedia.org/wiki/Lies,_d...and_statistics

"Eventually all bon mots will be attributed to Winston Churchill, Mark
Twain or Dorothy Parker"
- George Bernard Shaw.

Matti



  #6 (permalink)  
Old 08-01-2008, 04:46 PM posted to rec.food.drink.tea
Shen[_2_]
external usenet poster
 
Posts: 399
Default caffiene a carcinogen? (was New lurker)

On Jan 7, 10:39*pm, Ozzy please.answer@NG wrote:
Lewis Perin wrote innews
...

Did that doctor imply that caffeine was carcinogenic? *That would be
new to me.


...

That was unwelcome news to me, too, when a member of my cancer support
group said it too. *However, googling provided

http://www.benbest.com/health/caffeine.html

"Nonetheless, more recent evidence does show a capacity
*for caffeine to worsen the mutagenicity of ionizing
*radiation and other carcinogenic agents through interference
*with cell cycle control [MUTATION RESEARCH 532:85-102 (2003)]"

http://cancerres.aacrjournals.org/cgi/reprint/34/10/2720.pdf,
a paper which did exhaustive tests on golden hamsters,seemed also to
indicate that caffiene made more potent more standard carcinogens.

http://carcin.oxfordjournals.org/cgi/content/abstract/13/8/1379, 1992,
"Effects of caffeine, nicotine, ethanol and sodium selenite on
*pancreatic carcinogenesis in hamsters...",

A Japanese study that showed a stastically significant increase in
cancer in hamsters that were injected with this toxic mix. *Caffiene a
cancer "enabler" for the other carciogens...

http://www.inchem.org/documents/iarc/vol51/04-caffeine.html, 1991,
that states there there is inadequate evidence for the carcinogenicity
of caffiene (implicitly *by itself*) in both humans and experimental
animals.

* * * * -------------------

There are, as Winston Churchill said, three types of lies: lies, damned
lies, and statistics; and all of these studies are statistically based. *
Yet I'm not going to alter my tea habits based on the above, and not
just because of tea's anti-cancer phenols, either. *Life is just too
short to worry about everything.

Ozzy


Hold on a minute, guys.
Caffeine in moderation has been shown to inhibit cancer particularly
in the colon and there are now-being-conducted studies questioning the
duration and efficacy of ionizing radiation in some cases.
The antioxidant qualities in green tea (where been over this so many
times (see archives, this group) are unquestionable, at this point and
justified in many, many studies.
Stomach cancer is high in many Asian countries. Japan has a very, very
high rate. In my opinion due to a sky high consumption of sodium (and
possibly, high consumptions of raw fish and the heavy metals therein).
I would think nicotine, ethanol and all that salt would dis-ease
anything in Japan with or without tea.
To be honest, we don't really know about cancer in China because so
much of the medical data is unsubstantiated.
I would assume levels of gastrointestinal disease is climbing, in
general, due to high levels of pesticides, herbicides and additives in
foods and, of course, high levels of saturated fats and sodium.
Tea in sensible amounts is hardly a culprit.
Shen
  #7 (permalink)  
Old 08-01-2008, 04:48 PM posted to rec.food.drink.tea
Shen[_2_]
external usenet poster
 
Posts: 399
Default New lurker

On Jan 7, 10:00*am, wrote:
I like the idea of tea because of the philosophy associated with it;
for me, that would be Taoism; but am into green tea because of a
cancer scare I had in '02. *Had the bladder operation removing the
cancer and have been clear since, perhaps because of my change of
diet. *Doctors mentioned taking Saw Palmetto, but nothing about
drinking green tea.

I looked up newsgroups talking about cancer diets and read about
Chinese green tea. *A nurse who noted my intake of vitamins and
supplements commented that, yes green tea is drunk in China, and
Chinese have a low rate of bladder cancer, but they also have a higher
rate of stomach cancer. *Doctor advised me to avoid tea with caffeine,
drink herbal instead.

Long story short, I drink daily a couple large mugs of Chinese green
tea, removing 80% of the caffeine with a 30 second blanch. *To do
this, I heat to steaming filtered water in a pan, blanch the tea, pour
out the water, and pour in some pure distilled water I have heated to
only about 140 degree f, steeping the leaves at least twice more. *So
far, I haven't invested in a tea pot or tried the caffeine-free tea
bags; but I may.

Mostly, I rely on local Asian stores for my supply, but to get Dragon
Well I've had to go on-line and pay the freight for 1lb bulk. *After
looking over the 25K-some posts archived at this NG, I deduce that the
following retailers are a good bet: 1) Upton, 2) Culinary Teas, 3)
SpecialTeas.

Regards, bookburn

I *


Please check the archives of this group 30 second blanche - it is
truly debatable.
Shen
  #8 (permalink)  
Old 08-01-2008, 05:39 PM posted to rec.food.drink.tea
SN
external usenet poster
 
Posts: 228
Default caffiene a carcinogen? (was New lurker)

stomach cancer in japan was due to high content of sodium & nitrates
(they used them alot for conservation and foods), and also maybe to
infection with H.Pylori.
As Japan started to combat this situation, they ended up detecting in
situ cancer -at a very early stage, and allowed them to treat this,
and so 'lowered' their rates.

Smoking + Alcohol (especially combined) are a very potent and
efficient method of getting esophageal cancer.

nicotine.../ smoking -- risk for other types as well, including
bladder cancer, pancreas.

caffeine i've heard/read conflicting on pancreatic cancer.

fats -- colon cancer, and others.

high temperatures -- esophageal cancer risk.

dont know what kind of foods one eats to get ionizing radiation!!!
inside the body .........
  #9 (permalink)  
Old 09-01-2008, 01:16 AM posted to rec.food.drink.tea
bookburn@yahoo.com
external usenet poster
 
Posts: 31
Default New lurker

On Tue, 8 Jan 2008 08:48:10 -0800 (PST), Shen
wrote:

On Jan 7, 10:00*am, wrote:
I like the idea of tea because of the philosophy associated with it;
for me, that would be Taoism; but am into green tea because of a
cancer scare I had in '02. *Had the bladder operation removing the
cancer and have been clear since, perhaps because of my change of
diet. *Doctors mentioned taking Saw Palmetto, but nothing about
drinking green tea.

I looked up newsgroups talking about cancer diets and read about
Chinese green tea. *A nurse who noted my intake of vitamins and
supplements commented that, yes green tea is drunk in China, and
Chinese have a low rate of bladder cancer, but they also have a higher
rate of stomach cancer. *Doctor advised me to avoid tea with caffeine,
drink herbal instead.

Long story short, I drink daily a couple large mugs of Chinese green
tea, removing 80% of the caffeine with a 30 second blanch. *To do
this, I heat to steaming filtered water in a pan, blanch the tea, pour
out the water, and pour in some pure distilled water I have heated to
only about 140 degree f, steeping the leaves at least twice more. *So
far, I haven't invested in a tea pot or tried the caffeine-free tea
bags; but I may.

Mostly, I rely on local Asian stores for my supply, but to get Dragon
Well I've had to go on-line and pay the freight for 1lb bulk. *After
looking over the 25K-some posts archived at this NG, I deduce that the
following retailers are a good bet: 1) Upton, 2) Culinary Teas, 3)
SpecialTeas.

Regards, bookburn

I *


Please check the archives of this group 30 second blanche - it is
truly debatable.
Shen


I spent about two hours looking over some of the threads and did see
others mentioning the same equation for the 30 blanche. I know you
can get organic, decaffeinated green tea, if you justify the expense.
For me, doing the blanche is a good idea because of the pesticides and
other contaminants used by processors. But I'm keeping an open mind.
bb
  #10 (permalink)  
Old 09-01-2008, 01:09 PM posted to rec.food.drink.tea
DPM
external usenet poster
 
Posts: 96
Default caffiene a carcinogen? (was New lurker)

[snip]
Stomach cancer is high in many Asian countries. Japan has a very, very
high rate. In my opinion due to a sky high consumption of sodium (and
possibly, high consumptions of raw fish and the heavy metals therein).
I would think nicotine, ethanol and all that salt would dis-ease
anything in Japan with or without tea.


I read years ago that the high stomach cancer rate in Japan was linked to
their use of talc for polishing rice; apparently talc affects the body much
like asbestos.

Has this been disproven?

Dean


  #12 (permalink)  
Old 09-01-2008, 06:27 PM posted to rec.food.drink.tea
bookburn@yahoo.com
external usenet poster
 
Posts: 31
Default New lurker

On 09 Jan 2008 10:36:43 -0500, Lewis Perin wrote:

writes:

On Tue, 8 Jan 2008 08:48:10 -0800 (PST), Shen
wrote:
[...]
I spent about two hours looking over some of the threads and did see
others mentioning the same equation for the 30 blanche.


Try looking he

http://groups.google.com/group/rec.f...4edbbcaad2d97f

/Lew
---
Lew Perin /
http://www.panix.com/~perin/babelcarp.html


I see that 30 seconds for 80% is a lot different than " 5 minutes
(69%), 10 minutes (92%) and 15 minutes (100%)," called a pre-soak.
However, my search of the Internet just now didn't turn up a denial
that the often referenced 30 second blanche is effective, and most of
the retailers seem to refer to it. I'm wondering if the 80% figure
comes from comparing tea and coffee, since post-blanched tea might
reduce caffeine by 80% of what's in coffee.

It does seem that the caffeine in tea is not considered a problem by
health people and may contribute to fat loss and cancer defense.

Actually, I'm finding that I like the at-home blanche not only for
decaffeination, but also as a rinse of farming pesticides and such. I
haven't tried organic tea yet. But I seem to like the taste of
blanched tea better than unblanched. It does get rid of a pungent
grass-smelling result, at least that's my experience with lower-priced
teas, and I do use distilled water that lets flavor come through. bb

  #13 (permalink)  
Old 09-01-2008, 07:22 PM posted to rec.food.drink.tea
Lewis Perin
external usenet poster
 
Posts: 650
Default New lurker

writes:

On 09 Jan 2008 10:36:43 -0500, Lewis Perin wrote:

writes:

On Tue, 8 Jan 2008 08:48:10 -0800 (PST), Shen
wrote:
[...]
I spent about two hours looking over some of the threads and did see
others mentioning the same equation for the 30 blanche.


Try looking he

http://groups.google.com/group/rec.f...4edbbcaad2d97f

I see that 30 seconds for 80% is a lot different than " 5 minutes
(69%), 10 minutes (92%) and 15 minutes (100%)," called a pre-soak.
However, my search of the Internet just now didn't turn up a denial
that the often referenced 30 second blanche is effective, and most of
the retailers seem to refer to it.


You can find lots of misinformation on the Net. And retailers have an
interest in reassuring caffeine-shy customers.

I'm wondering if the 80% figure comes from comparing tea and coffee,
since post-blanched tea might reduce caffeine by 80% of what's in
coffee.


I don't understand how you could read it that way. Besides, the
leaves you use to make a cup of tea, on average, start out with less
than 80% of the caffeine in a cup of coffee.

/Lew
---
Lew Perin /
http://www.panix.com/~perin/babelcarp.html
  #14 (permalink)  
Old 09-01-2008, 07:26 PM posted to rec.food.drink.tea
Ozzy
external usenet poster
 
Posts: 69
Default caffiene a carcinogen? (was New lurker)

"DPM" wrote in
:

[snip]
Stomach cancer is high in many Asian countries. Japan has a very, very
high rate. In my opinion due to a sky high consumption of sodium (and
possibly, high consumptions of raw fish and the heavy metals therein).
I would think nicotine, ethanol and all that salt would dis-ease
anything in Japan with or without tea.


I read years ago that the high stomach cancer rate in Japan was linked
to their use of talc for polishing rice; apparently talc affects the
body much like asbestos.

Has this been disproven?


Now I thought that in China, stir-fried food was the culprit in the high
rate of stomach cancer. BTW, I don't think any method of cooking
affects the heavy metals that fish pick up from the polluted oceans,
does it? It's just something that all sea-food eaters (inculding most
fish) have to suffer...

Ozzy

  #15 (permalink)  
Old 09-01-2008, 07:51 PM posted to rec.food.drink.tea
Scott Dorsey
external usenet poster
 
Posts: 428
Default caffiene a carcinogen? (was New lurker)

Matti Lamprhey wrote:
"DPM" wrote...
[snip]
There are, as Winston Churchill said, three types of lies: lies,
damned lies, and statistics;


Actually, I believe this quote was originally attributed to Benjamin
Disraeli.


Fuller story:
http://en.wikipedia.org/wiki/Lies,_d...and_statistics

"Eventually all bon mots will be attributed to Winston Churchill, Mark
Twain or Dorothy Parker"
- George Bernard Shaw.


"If, perhaps, I ever am
Compelled to speak an epigram
I never seek to take the credit
We all assume that Oscar said it."
-- Dorothy Parker (really)
(referring to Oscar Wilde)

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
 




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