There is a bitter green tea taste in my coffee travel carafe. It makes my coffee taste bitter. How can I remove the taste?
By vivian bader from New York City
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Have you tried using vinegar? I use it to clean my coffee makers and carafe. I mix 1/4 vinegar with 3/4 water. Two times is usually enough to get out all the impurities. Rinse it out twice with water and it should get rid of the vinegar smell and taste.
You could try filling it with strong lemon juice solution overnight and washing it next morning.
I wouldn't recommend doing anything with lemon juice if your travel thermos is stainless steel on the inside. If stainless steel has even a tiny scratch or chip in it, lemon juice will make it pit (aka, put black, non-removable circles on it), which can make its insulation properties weaken. I used to work for a kitchen appliance and cookware manufacturer, which is how I know this.
What can happen with thermoses used for coffee is that they can get a buildup of coffee-coated calcium on the inside if you use it often. I would suggest trying out two things, first would be filling the thermos with half white vinegar, half water, and letting it soak overnight. The next day, use something similar to a baby bottle brush or one of those dishwashing sponges with a handle, rinse with water, and wipe the inside out.
If that doesn't work, you can try the same method, but instead of vinegar and water, use something a bit stronger, a couple tablespoons of liquid dishwasher detergent (not dish soap) and fill the rest up with water.
Good luck! :)
If you can get your hand inside, or a folded kitchen sponge, I would try rubbing the inner surface with baking soda. This should help get the deposits off.
Three tablespoons bleach and the rest hot water, let sit for 1/2 hour then wash well and rinse well in hot water. Best way to rinse is put under tap at hottest water temp and let it run.
Wash it with Dawn dishwashing liquid using a bottle brush or dish sponge and hot water to remove the oils, be sure to include the threaded top. Rinse well then fill with baking soda in water to the brim so it will cover the screw threads and let sit overnight, Next morning rinse and should be ready to go and clean smelling and tasting.
Fill it with hot tap water and add 1 or 2 (depending on capacity of thermos ( I use 2 in my quart size) denture tablets (these are the tablets used for cleaning artificial dentures). Let this set unclosed until the water has cooled (I do this overnight) then rinse well and you are set to go. If the top also needs cleaning fill a container that is large enough to hold it and follow the same procedure.
This is a completely safe way to clean as the tablets are used for dentures which will return to the mouth when the dentures are cleaned.
Good luck.
Please 'do not use bleach' as it can leach in to the lining of the carafe! I so wish that people understood that bleach can contaminate any food utensil that might have a porous material!
Fill half way with hot water, add a couple tablespoons of salt, put lid back on, shake like crazy, finish filling with hot water, shake again and allow to soak for a few minutes. You can also try roopasekhar's vinegar idea but make sure the water is hot.
Great advice on Thermos Cleaning. I just used the Denture tablets, my Mom lives with me and we had plenty on hand. After just a couple hours I rinsed carafe and it was sparkling clean!
Take about 1 tsp of baking soda and fill with hot water. Shake to dissolve and let it set for about 1/2 hour. Then use a bottle brush, wash and rinse. It will sparkle again.
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