Chai Tea V2 Flavoured Flavour Apprentice Liquid concentrate CLOSE TO OR PASSED BEST BEFORE DATES

When the first drops of this dark, almost black flavour dripped out of my 10 ml bottle, they already cried "coil killer!"
Since no recommendation for concentration is given, I mixed it nonetheless at 5 % with 3.33 mg/ml nicotine in a 50/50 base.
After two weeks of steeping, the dark brown liquid killed an almost new Vaporesso cCell coil within five puffs. Not only did the whole tank instantly taste and smell burnt, the coil was completely clogged in a way I've never experienced before.
What's more, to me this flavour does not resemble the taste of a chai tea at all. For example, the typical cardamom note is missing. I recommend Capella's "Chai Tea" instead which I find highly enjoyable at 5.5 to 6 %.