Quote:
Originally posted by cj2112
I would NEVER use bleach or ammonia on a flask. By doing so, you run the risk of damaging it. I would suggest warm water, baking soda, and some uncooked rice put this combo into the flask and shake well. If that doesn't do the trick try some crushed ice, salt and lemon juice, then shake well.
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This looks like the safest option. If this doesn't work, then I'll try the bleach.
Thanks all.