I got a free flask from a recent Bourbon event and I filled it with some OGD114 for my trip. I cleaned it out with hot water and I noticed the "Made in China" sticker but thought it'd be ok... Well, I just poured some and the bourbon's turned almost green w/ grey colloidal swirls :-(
Do you guys use these el cheapo flasks? If so, do you ever check for whisky discoloration?
(Good thing my other "Made in Japan"/Titanium flask has been rock solid - always have a backup)