Does Vape Juice Expire? Why Does Vape Juice Turn Brown? All You Need To Know Why does e liquid turn brown? And How To Stop It. EDGE Vaping Why does e liquid turn brown? And How To Stop It. EDGE Vaping I've noticed something with these posts involving dark or defective pods.. the flavor is typically Gold or Tobacco flavoring. I buy the 2.4% Menthol n only had a handful of issues. The On right, pod I've been using for a few days, on left, new pod. Is Vape juice turning brown black normal? Should I be concerned?? : r Vaping