Does Vape Juice Expire? Why Does Vape Juice Turn Brown? 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 Why Is My Vape Liquid Turning Brown? Causes and Solutions 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