Really good information. Loving this community. Thank you all for the replies. It's been about a month and honestly, I've not touched a cigg since vape. And I'm not really addicted to vape as well, it's just something that helps me relax throughout the day and keeps me away from cigarettes. But recently, I've been using a bottle of ejuice that keeps gunking up my coil & now i have a fully filled tank, but you know those brown substances just seeps out into my ejuice in my tank. Does anyone have any information if I can still vape on safely or do i have to dispose the liquid and clean my coils immediately? I have very minimal information on gunks. I only know it happens if the ejuice is kinda sweet, but it's the first time i noticed brown substances seeping into my tank of ejuice which kinda affects the taste.