Right no brand names or anything just first letter of (if allowed?)
Bottle 1 is K and still looks the same from when I got it about a year ago.
Bottle 2 is B and can’t see any crystals forming in the liquid.
Bottle 3 is from an old UK RC site a good while ago and lots of crystals in this one.
Should I attempt to vape any of the above bottles or chuck them all out and try and acquire a fresher one I’d use up?