We did some testing this week on the effects of environment on e-liquids.  On Tuesday morning we made 5 sets of juices.  Each set contained 2 DeKang 10ml e-liquids at 0mg and 24mg.  We then put these sets in different places and photographed the effects that the different environments had on the tanning of the liquids.  The 5 environments were in a car, on a window sill, in my pocket, at room temperature in my office and in the refrigerator.  The image to the right was taken when the liquids were mixed.  The 3 below are on the 3 subsequent days.

As you can see the 2 biggest factors are temperature and sunlight.  The last but most constant is time.  I say most constant because time even in the best environment will still see a change in the color of the e-liquid.  We are going to prove this by continuing this experiment for the next couple of weeks so that you can see the results.  It is safe to say that an e-liquid in a cool dark environment will not completely stop tanning but will dramatically reduce the process.

 We performed these tests to give you an idea of why you can receive an e-liquid from one order and it is different from the color of an identical e-liquid from a different order.  Depending on the temperature the liquid endured in shipping to you, the time it took to be delivered, even the age of the batch of nicotine used (because even a couple days can make a difference), the tanning process can make the e-liquid darker.  This does not mean that the quality is affected, just that it is tanned.  In fact many people like their e-liquids to steep or age because they feel the flavors are better after they have sat for a few days or even a week.  E-liquids are good for up to 2 years at room temperature as long as they are not left open.  We hope this answers some of your questions and we will be continuing this experiment as well as providing a few others in the near future.