Why does Green Tea stain my mug?

HyperM3 · 10-29-2007, 09:57 AM

I can understand how coffee stains coffee cups and mugs and such. However, Im getting brown stains on the sides of my ceramic mug. If my tea is clear(ok light green) and Im drinking it pretty quickly an not letting it sit in my mug, how is it causing stains?

KL2DC · 10-29-2007, 09:59 AM

Quote:

Originally Posted by HyperM3

I can understand how coffee stains coffee cups and mugs and such. However, Im getting brown stains on the sides of my ceramic mug. If my tea is clear(ok light green) and Im drinking it pretty quickly an not letting it sit in my mug, how is it causing stains?

yikes, what would that do to your insides?

HyperM3 · 10-29-2007, 10:03 AM

Quote:

Originally Posted by KL2DC

yikes, what would that do to your insides?

Right, and to think Im drinking it because its supposed to be healthy.

gonzo · 10-29-2007, 10:04 AM

My mug is black???
I drink sun brewed iced green tea.
Insides?? Alcohol takes care of that.

KL2DC · 10-29-2007, 10:04 AM

Quote:

Originally Posted by gonzo

My mug is black???
I drink sun brewed iced green tea.
Insides?? Alcohol takes care of that.

gonzo · 10-29-2007, 10:05 AM

Quote:

Originally Posted by HyperM3

Right, and to think Im drinking it because its supposed to be healthy.

I know coca cola is not healthy and I rarely drink them but have you seen what it does to copper if you soak it in coke??? That is scary.

KL2DC · 10-29-2007, 10:07 AM

Quote:

Originally Posted by gonzo

I know coca cola is not healthy and I rarely drink them but have you seen what it does to copper if you soak it in coke??? That is scary.

I don't think I wanna know then

on the flip side alcohol is a known preservative, does that mean its better for our innards then

gonzo · 10-29-2007, 10:10 AM

Alcohol has been proven to prolong my life because that is what I think.

gonzo · 10-29-2007, 10:15 AM

As long as it does not do this...I like it with some real cane sugar and a little lemon.

UncleWede · 10-29-2007, 10:51 AM

MAYBE it's the water source you are using, not the green tea itself?

HyperM3 · 10-29-2007, 10:55 AM

Quote:

Originally Posted by UncleWede

MAYBE it's the water source you are using, not the green tea itself?

Multiple water sources(different offices). But good thought.

UncleWede · 10-29-2007, 10:59 AM

Do you use yellow, blue, or pink rat poison to flavor the tea?

ksfrogman · 10-29-2007, 11:04 AM

Coke is very acidic and oxidizes metal easily. You know dentists will tell you to avoid all the colored stuff when you get your teeth cleaned. Green tea does have color to it. Oh gosh, I just came from the 2 girls, 1 cup thread.

Scottz71 · 10-29-2007, 01:04 PM

Quote:

Originally Posted by ksfrogman

Coke is very acidic and oxidizes metal easily. You know dentists will tell you to avoid all the colored stuff when you get your teeth cleaned. Green tea does have color to it. Oh gosh, I just came from the 2 girls, 1 cup thread.

me too...cannot think about anything food related now, and won't be having ice cream anytime soon...somebody get that chick some f-ing pepto.

HyperM3 · 10-29-2007, 01:21 PM

See, heres a pic of it even after I just scrubbed it with Dawn.

O-cha · 10-29-2007, 01:31 PM

You're not drinking it fast enough or the cup was not clean to begin with.

The brown color is from the tea oxidizing, that in turn is sticking to your cup. Actually, its probably the other way around and residue is staying on your cup then oxidizing when you leave it. Either the cups not clean, or it may be pores. If the cup was clean and you drank at a normal pace it wouldn't happen.

FYI green tea is green because its low to no oxidization. Other teas are red/brown black because they were let to oxidize for longer. So your green tea turning brown is not a weird occurrence, kind of like an apple turning brown in the air.

HyperM3 · 10-29-2007, 01:39 PM

Hmm, is this unsafe to drink out of? I clean my mug after every use and thats how Ive been since I started using it. Guess I should retire this mug.

O-cha · 10-29-2007, 01:40 PM

Why would it be unsafe? Also, what does your green tea taste like?

HyperM3 · 10-29-2007, 01:42 PM

Quote:

Originally Posted by O-cha

Why would it be unsafe? Also, what does your green tea taste like?

I dont know, if its porous then it can harbor microscopic bacteria right?

It tastes like green tea. Whats it supposed to taste like?

KL2DC · 10-29-2007, 01:44 PM

Quote:

Originally Posted by O-cha

You're not drinking it fast enough or the cup was not clean to begin with.

The brown color is from the tea oxidizing, that in turn is sticking to your cup. Actually, its probably the other way around and residue is staying on your cup then oxidizing when you leave it. Either the cups not clean, or it may be pores. If the cup was clean and you drank at a normal pace it wouldn't happen.

FYI green tea is green because its low to no oxidization. Other teas are red/brown black because they were let to oxidize for longer. So your green tea turning brown is not a weird occurrence, kind of like an apple turning brown in the air.

nice answer...

gonzo · 10-29-2007, 01:45 PM

Not a bold as brown/black/red teas. Subtle with a hint of green..

O-cha · 10-29-2007, 01:45 PM

Quote:

Originally Posted by HyperM3

I dont know, if its porous then it can harbor microscopic bacteria right?

It tastes like green tea. Whats it supposed to taste like?

Well id say 90% of Americans who drink green tea drink junk that can't be called green tea. I was just trying to figure out if you were in the majority or minority. I'm a bit of a tea lover.

10-29-2007, 09:57 AM	#1
HyperM3 Too many Alex's, from now on, call me Beaufort 378 Rep 6,189 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	Why does Green Tea stain my mug? I can understand how coffee stains coffee cups and mugs and such. However, Im getting brown stains on the sides of my ceramic mug. If my tea is clear(ok light green) and Im drinking it pretty quickly an not letting it sit in my mug, how is it causing stains? __________________ 2020 R1250RS(Still have) 07 335i(gone) 97 M3(gone)
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10-29-2007, 10:04 AM	#4
gonzo Lieutenant General 10422 Rep 14,481 Posts Drives: as many as possible Join Date: Jan 2007 Location: TeXXXas iTrader: (0)	My mug is black??? I drink sun brewed iced green tea. Insides?? Alcohol takes care of that. __________________ Crazy Diamond
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10-29-2007, 10:10 AM	#8
gonzo Lieutenant General 10422 Rep 14,481 Posts Drives: as many as possible Join Date: Jan 2007 Location: TeXXXas iTrader: (0)	Alcohol has been proven to prolong my life because that is what I think. __________________ Crazy Diamond
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10-29-2007, 10:15 AM	#9
gonzo Lieutenant General 10422 Rep 14,481 Posts Drives: as many as possible Join Date: Jan 2007 Location: TeXXXas iTrader: (0)	As long as it does not do this...I like it with some real cane sugar and a little lemon. Attached Images __________________ Crazy Diamond
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10-29-2007, 10:51 AM	#10
UncleWede Long Time Admirer, First Time Owner 18873 Rep 9,453 Posts Drives: G01 X3 M40i Dark Graphite Join Date: Jun 2005 Location: Oxnard, CA iTrader: (0)	MAYBE it's the water source you are using, not the green tea itself?
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10-29-2007, 10:59 AM	#12
UncleWede Long Time Admirer, First Time Owner 18873 Rep 9,453 Posts Drives: G01 X3 M40i Dark Graphite Join Date: Jun 2005 Location: Oxnard, CA iTrader: (0)	Do you use yellow, blue, or pink rat poison to flavor the tea?
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10-29-2007, 11:04 AM	#13
ksfrogman Major General 704 Rep 6,750 Posts Drives: E90 330i 6MT Join Date: Nov 2005 Location: Torrance, CA iTrader: (12) Garage List 2006 330i [0.00] 2006 330i [0.00]	Coke is very acidic and oxidizes metal easily. You know dentists will tell you to avoid all the colored stuff when you get your teeth cleaned. Green tea does have color to it. Oh gosh, I just came from the 2 girls, 1 cup thread. __________________
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10-29-2007, 01:21 PM	#15
HyperM3 Too many Alex's, from now on, call me Beaufort 378 Rep 6,189 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	See, heres a pic of it even after I just scrubbed it with Dawn. __________________ 2020 R1250RS(Still have) 07 335i(gone) 97 M3(gone)
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10-29-2007, 01:31 PM	#16
O-cha Brigadier General 251 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	You're not drinking it fast enough or the cup was not clean to begin with. The brown color is from the tea oxidizing, that in turn is sticking to your cup. Actually, its probably the other way around and residue is staying on your cup then oxidizing when you leave it. Either the cups not clean, or it may be pores. If the cup was clean and you drank at a normal pace it wouldn't happen. FYI green tea is green because its low to no oxidization. Other teas are red/brown black because they were let to oxidize for longer. So your green tea turning brown is not a weird occurrence, kind of like an apple turning brown in the air.
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10-29-2007, 01:39 PM	#17
HyperM3 Too many Alex's, from now on, call me Beaufort 378 Rep 6,189 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	Hmm, is this unsafe to drink out of? I clean my mug after every use and thats how Ive been since I started using it. Guess I should retire this mug. __________________ 2020 R1250RS(Still have) 07 335i(gone) 97 M3(gone)
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10-29-2007, 01:40 PM	#18
O-cha Brigadier General 251 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	Why would it be unsafe? Also, what does your green tea taste like?
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10-29-2007, 01:45 PM	#21
gonzo Lieutenant General 10422 Rep 14,481 Posts Drives: as many as possible Join Date: Jan 2007 Location: TeXXXas iTrader: (0)	Not a bold as brown/black/red teas. Subtle with a hint of green.. __________________ Crazy Diamond
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