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cleaning thermos

huruta Feb 2, 2009 04:01 PM

I have a stainless steel Nissan thermos and also just bought a lovely Technivorm coffee maker that comes with a stainless steel thermos. Neither has an opening big enough for me to get my hand into to clean. So my question is....

how does one clean a stainless steel thermos? In particular I'm concerned about the residual build up of old coffee that will adversely affect the flavor of freshly brewed coffee.

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  1. goodhealthgourmet RE: huruta Feb 2, 2009 04:35 PM

    get a long-handled scrub brush - i bought one specifically to clean the green tea stains out of my stainless travel mug.

    1. alanbarnes RE: huruta Feb 2, 2009 05:22 PM

      A bottle brush is your friend. With a little bit of hot soapy water it should take care of most problems.

      If you get an accumulation of crud that the bottle brush won't remove, try dumping in a tablespoon or two of uncooked rice, a fair amount of dish soap, and a little hot water. Put the lid on and shake hard until your arm muscles give out. The rice will abrade off most anything.

      1. k
        Kelli2006 RE: huruta Feb 2, 2009 05:25 PM

        I use hot water, a bottle brush. If the buildup is bad, dissolve a few Tbls of baking soda and let stand for a few minutes and then scrub as usual.

        1. yayadave RE: huruta Feb 2, 2009 05:36 PM

          I think soaking with Polident will loosen things up.

          1. t
            ThanksVille RE: huruta Feb 2, 2009 09:38 PM

            Urnex 'Cafiza' is the best coffee stain/residue cleaning product that I have ever encountered.

            It is actually the same product recommended for blind cleaning of manual espresso machines and can be obtained from any internet site that specializes in such equipment. I originally bought it for use in our two year old Vibiemme and it keeps all parts clean and fresh from any old coffee oils; but have since found it has amazing cleaning abilities.

            After decades of use, our stainless steel lined thermos' which transport coffee on every family road trip, had taken on a dark brown tint that no amount of swishing with detergent or even abrasive cleaners like comet could dislodge. I tried the Urnex product and after two overnight soakings, the interior is like brand new and coffee tastes better as well.

            Since that discovery, I use it once a week or so to soak out our stainless steel bottom Bunn coffee pots at the office which literally bakes on a daily basis and the stuff works magnificently. No scrubbing needed. Just pour in a tablespoon, add hot water, swirl to dissolve and let it soak overnight. Rinse well, until the water stops being soapy, do a final hot water rinse and it's amazingly clean.

            I tried the same product on a very well stained Riedel decanter that has been used for decanting vintage port for nearly a decade and had a decidedly red film that no amount of scrubbing (rice, soft brushes, etc.) could dislodge. Within minutes of soaking and swirling, the crystal was crystal clear again.

            Expensive at $12. per container, but at a tablespoon per use (espresso machine only requires a teaspoon), my original 16 oz container is still half full after a year or so. Sorry I couldn't make the following into a direct link but go out to the 1st line coffee website and look for the cleaning products. It really works


            1 Reply
            1. re: ThanksVille
              Robin Joy RE: ThanksVille Feb 3, 2009 11:05 AM

              Thanks, that stuff sounds great. Next task is to find it here in the UK. What does it taste like?

            2. h
              huruta RE: huruta Feb 3, 2009 08:34 AM

              Thanks to everyone who responded. The brush sounds like a great idea and now I just might have to try Urnex!

              1. m
                masha RE: huruta Feb 3, 2009 10:56 AM

                When no brush is available, just add a few drops of dishwashing liquid (e.g., Dawn), fill with very hot water, screw on lid & shake, and then empty & rinse several times until the water runs clear.

                1. e
                  exteriorcleaner RE: huruta Sep 4, 2009 10:38 PM

                  I agree with the following, get a thin tubular brush, let the thing sit with hot water and soap for a few minutes, then brush it out. There's really no other way unless you mix up some ungodly concoction of cleaners which, I wouldn't do as you might distress the stainless steel inside causing corosion....I clean things for a living..check me out....www.collegestudentcleaning.com

                  1. greygarious RE: huruta Sep 5, 2009 07:32 AM

                    Powdered dishwasher detergent and hot water. Let it sit awhile, then shake it well and uae a brush. Rinse multiple times. A co-worker tipped me to this - works like a charm, way better than detergents meant for in-sink dishwashing.

                    1. g
                      gnomatic RE: huruta Sep 5, 2009 05:07 PM

                      Denture cleaning tablets does a great job of cleaning bottles.

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