Getting rid of the “ive been in a flask” taste?

[jackg]

I’m wondering how to get rid of this taste in my flask?

The only thing I can think of doing is plugging the plastic at the top of the flask with some foil but I don’t think that will be very productive and it’ll be very wasteful. Any help would be appreciated (I could rally do with accounts on other forums).

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[Jet Cash]

Use lemon juice or white vinegar.
Squeeze the lemon juice into the flask, or add about an inch of white vinegar, top up with very hot water, and leave for a couple of hours.

Warning, this is to remove the taste from the flask. Don't drink boiling water to remove mouth odours.

[jackg]

Ooh yhanks! I’ll try it. How many lemons if it’s a litre flask?

I’m guessing I’ll have to leave it to clean quite thoroughly after that, few days probably (after leaving the lemon and water in for about a day or two).

[o_e_l_e_o]

Baking soda and hot water is also worth a try.

If it's a vacuum flask you are using to keep coffee warm, I've found that switching to black or adding the milk just before drinking helps a lot.

[Pmalek]

Just like o_e_l_e_o suggested, try with baking soda.
I assume the taste is that of plastic since you mention there is plastic on the top of the flask.

To get rid of the taste, we recommend filling 3/4 the way of warm water and a tablespoon of baking soda, and letting the contents sit for approximately 40 minutes to one hour. Once you rinse it out, your bottle should be taste-free and good to go.

source:
https://www.camelbak.com/en/customer-service/help-center/care-cleaning/product-cleaning/plastic-taste

[Jet Cash]

Sodium Bicarbonate ( or baking soda) has other benefits for coffee drinkers. Coffee is acid, and drinking several cups can disrupt the acid balance in your stomache. This can lead to reflux. If you add a pinch of bicarb to your coffee, you won't notice any difference in flavour, but the alkaline bicarb will help to reduce the acid level without any side effects.

[paxmao]

First of all, is it a plastic flask or a proper stainless steel one? In any case, I suggest a mixture of ammonium nitrate based fertiliser and 5.6% diesel. Put inside a copper wires connected to a source of power and run. It will remove the odour and anything else within 5 meters of distance.

[jackg]

Just like o_e_l_e_o suggested, try with baking soda.
I assume the taste is that of plastic since you mention there is plastic on the top of the flask.

To get rid of the taste, we recommend filling 3/4 the way of warm water and a tablespoon of baking soda, and letting the contents sit for approximately 40 minutes to one hour. Once you rinse it out, your bottle should be taste-free and good to go.

source:
https://www.camelbak.com/en/customer-service/help-center/care-cleaning/product-cleaning/plastic-taste

If it’s just the lid should I put it in its own mixture, top the bottle upside down or just use it as normal?

[paxmao]

Just like o_e_l_e_o suggested, try with baking soda.
I assume the taste is that of plastic since you mention there is plastic on the top of the flask.

To get rid of the taste, we recommend filling 3/4 the way of warm water and a tablespoon of baking soda, and letting the contents sit for approximately 40 minutes to one hour. Once you rinse it out, your bottle should be taste-free and good to go.

source:
https://www.camelbak.com/en/customer-service/help-center/care-cleaning/product-cleaning/plastic-taste

If it’s just the lid should I put it in its own mixture, top the bottle upside down or just use it as normal?

if it is just the lid, prepare a bowl with the mixture and immerse the lid on it. That is, if you did not like my previous idea.