I'm using a simple ceramic diffuser with a tea light candle. Once the water evaporates I can still find some oil stains left on the surface of the diffuser. Is it normal or a problem with the quality of the essential oils?A:
Generally speaking, essential oils shouldn't be leaving stains on your diffuser.
That said, some oils like vetiver or patchouli are brown or amber in color and may stain. Citrus oils are yellow or yellow-green, and they may also add some color.
If clear essential oils like lavender, geranium and most of the other oils are leaving stains on your diffuser, I would say it could very well be a quality issue. Your oils are likely diluted with either a cheaper type of oil or even a synthetic fragrance booster, many of which can be harmful to your health.
For absolutely pure, clean essential oils, I recommend doTERRA
- they're what I use, and they undergo 6 different types of testing to make sure they're absolutely pure.
If budget is more important than purity right now, my second favorite supplier is Mountain Rose Herbs
, whose quality is comparable to most other oils on the market - often with better prices. Anything I can't get from doTerra, I buy from Mountain Rose.
I hope that helps answer your question. Best of luck!