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Discussions > Coffee > Q and A > Smelly Thermos  
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Teejaweej
Junior Member


Joined: 18 Sep 2008
Posts: 42
Location: South Glastonbury
Expertise: I live coffee

Posted Thu Sep 25, 2008, 5:28pm
Subject: Smelly Thermos
 

Hey guys!

So I just got this new Thermos. It has a glass-interior and it holds about 3 cups. I've used it about 3 times so far. My method is as follows:

Pour hot water into thermos and screw top on
Make 2 cups of french press coffee in my bodum chambourd
Pour water out of thermos
Fill thermos with coffee directly from french press
Screw top on.

I then bring the thermos to school and pour a few cups throughout the day. It's usually empty after 4 hours after initially pouring the coffee in. When I get home, I clean out the thermos with soap and hot water. Even after two usages, the coffee thermos smells horrible and I personally believe it affects the taste of the next day's coffee. I feel like there should be some way to avoid this easily because thermoses usually house... well... coffee.

Whats the dealio?

-T.J.
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LifeandPeace
Senior Member
LifeandPeace
Joined: 9 Nov 2007
Posts: 119
Location: formerly here and there

Espresso: coffee
Grinder: is
Vac Pot: culinary
Drip: not
Roaster: commodity
Posted Thu Sep 25, 2008, 5:46pm
Subject: Re: Smelly Thermos
 

Dealio. Good vocabulary.

Glass-lined? No way! I thought that was only in my imagination! Where'd you get it?

Are you able to thoroughly scrub all of the inside of the thermos? If not, that's probably part of the problem. The FP will leave oil in the cup. Has to be scrubbed.

How do you like the brew after 3 hours? Some suggest drinking a FP brew immediately, rather than thermosizing it because the fines will continue to extract. But if you dig, you dig.

Try a Chemex- or otherwise pourover-brewed method in your thermos. See how it contrasts after three hours.

 
www.lampmode.com
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Gime2much
Senior Member


Joined: 10 Dec 2004
Posts: 949
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Thu Sep 25, 2008, 6:07pm
Subject: Re: Smelly Thermos
 

Clorox 25/75 water...Leave over night...Rinse..Rinse..sniff sniff....Rinse again if needed.

Smell gone, dried oil gone, end of story.

 
Dan Brewer
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Teejaweej
Junior Member


Joined: 18 Sep 2008
Posts: 42
Location: South Glastonbury
Expertise: I live coffee

Posted Thu Sep 25, 2008, 6:07pm
Subject: Re: Smelly Thermos
 

Yeah, glass lined! Got it at the supermarket for a cool 11 bucks! It keep my brew piping hot like a charm, but I have to admit, the flavor isn't too great with french press. I always thought it was the thermos's fault, but now I see that it's because of the continuation of the extraction. Thank you for informing me!!

I've got a little melitta plastic pour-over brewer, but will that be sufficient for making a full 2 or 3 cups of coffee?

Also, what type of grind should I use for a pour-over??

Thanks for the help,
T.J.
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LifeandPeace
Senior Member
LifeandPeace
Joined: 9 Nov 2007
Posts: 119
Location: formerly here and there

Espresso: coffee
Grinder: is
Vac Pot: culinary
Drip: not
Roaster: commodity
Posted Thu Sep 25, 2008, 6:25pm
Subject: Re: Smelly Thermos
 

D'Brewer--

Good tip. Thanks. I have a nice double-walled vacuum stainless thermos, but it has proved difficult to clean. I'll try your advice.

Teejaweej,

What is the number of your filter?

Recommended grind for pour-over is a little finer than "drip." If that means anything! Just keep turning the knob 'til you like it.

"Bucks," eh? I was thinkin' you were in England. Must be east coast?

 
www.lampmode.com
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boldjava
Senior Member
boldjava
Joined: 2 Jun 2006
Posts: 588
Location: Wisconsin
Expertise: I love coffee

Espresso: Ms Silvia, who else?
Grinder: Macap 4
Vac Pot: Yama 5C Stove,vintage Cory
Drip: Chemex & Bodum gold filter
Roaster: Gene, Nesco
Posted Fri Sep 26, 2008, 1:46am
Subject: Re: Smelly Thermos
 

LifeandPeace Said:

D'Brewer--

Good tip. Thanks. I have a nice double-walled vacuum stainless thermos, but it has proved difficult to clean. I'll try your advice.

Posted September 25, 2008 link

Clorox on glass only.  Clorox on stainless steel is B-A-D.  Don't do it.  Bleach will eat the welds that are in there.

http://www.thermos.com/careuseStainlessSteelVacuumware.aspx

B|Java

 
"On the trail for the goats' grail..."

Dave Borton
Milwaukee
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Gime2much
Senior Member


Joined: 10 Dec 2004
Posts: 949
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Fri Sep 26, 2008, 5:18am
Subject: Re: Smelly Thermos
 

boldjava Said:

Clorox on glass only.  Clorox on stainless steel is B-A-D.  Don't do it.  Bleach will eat the welds that are in there.

http://www.thermos.com/careuseStainlessSteelVacuumware.aspx

B|Java

Posted September 26, 2008 link

 


Dam.. too bad someone didn't tell me that 30 years ago. Thats about how long I've been doing it with no bad results. Wonder why my state
health inspector wants me to use clorox on my stainless equipment?

 
Dan Brewer
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DaveTheBrewGuy
Senior Member


Joined: 31 Jul 2008
Posts: 82
Location: The Brewery
Expertise: I like coffee

Espresso: Gaggia Espresso
Grinder: Gaggia MDF, Baratza Maestro
Drip: Saeco Renaissance
Roaster: Behmor
Posted Fri Sep 26, 2008, 5:17pm
Subject: Re: Smelly Thermos
 

Gime2much Said:

Dam.. too bad someone didn't tell me that 30 years ago. Thats about how long I've been doing it with no bad results. Wonder why my state
health inspector wants me to use clorox on my stainless equipment?

Posted September 26, 2008 link

Bleach is a great disinfectant and a very mild solution will effectively sanitize with a relatively short contact time. OTOH, extended contact or stronger bleach solutions will cause pitting on stainless steel (not just the welds). PBW (from 5 star chemicals, about halfway down the page) and a bottle brush will make short work of coffee residue on any surface. I just cleaned my carafe with it, I soak for an hour or two and then hit it with a brush for a minute and it is spotless. Try any homebrew supply place for PBW.
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Gime2much
Senior Member


Joined: 10 Dec 2004
Posts: 949
Location: Sunny S Fl
Expertise: I love coffee

Espresso: La Pavoni, Astoria comm, 2...
Grinder: La Pavoni Zip, Bunn...
Drip: Bunn comm
Roaster: Popcorn popper (air),co/ufo
Posted Fri Sep 26, 2008, 8:25pm
Subject: Re: Smelly Thermos
 

Teejaweej Said:

Hey guys!

So I just got this new Thermos. It has a glass-interior.

Posted September 25, 2008 link

First bleach will take a long time to harm stainless if ever and second I believe the OP is referring to glass.

 
Dan Brewer
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escorpiro
Senior Member
escorpiro
Joined: 28 Jan 2008
Posts: 23
Location: East Coast USA
Expertise: I love coffee

Posted Fri Sep 26, 2008, 9:08pm
Subject: Re: Smelly Thermos
 

I use baking soda to clean and deodorize the airpots I use for work.    

For a three-cup thermos like yours, T.J., I'd clean it this way:
empty out any leftover coffee, and rinse the thermos with hot water.  Empty that.  Fill the thermos with hot water and one teaspoon of baking soda.  Let it sit for about 15 minutes.  Using one of those mop-type brushes, clean the interior with the baking soda solution.  A bottle brush, or any bristle brush, is too harsh, IMO, and could break the glass if your cleaning gets too vigorous.  I'd use a soft brush as mentioned, to be on the safe side.

Baking soda is mild and, of course, food safe.  Use more or less as you see fit, and adjust the soaking time, if needed.  You can repeat the above procedure as many times as you like, but you probably won't need to.  Be sure to rinse the thermos thoroughly with warm water at the end of the cleaning cycle.
Let it dry with the top off.

Baking soda is inexpensive, and worth a try.

Deb
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