Just sharing my own personal experience. I know this sounds crazy, but I purchased some E juice from Mt. Baker Vapor. juice was decent out of the bottle. I live in Tx, temps get extremely hot summer months. Temps reaching 100 recently. One afternoon I was in a hurry, left my banana cream juice bottle in the car, approx 3 hours later, juice changed color, became darker. Later that night, I filled kanger tank, and thought wow ! that's what banana cream is suppose to taste like. Flavor was so good, I vaped 2ml's in like an hour. Sunlight increased strength of flavor.
So, next day I left juice bottle in car for approx an hour more, same time approx 3pm. Afterwards flavor was excessively strong, felt like vomiting, to creamy. So between 1-3 hours is good, outdoor temp was approx 94-95 degrees.
So, next day I left juice bottle in car for approx an hour more, same time approx 3pm. Afterwards flavor was excessively strong, felt like vomiting, to creamy. So between 1-3 hours is good, outdoor temp was approx 94-95 degrees.