After buying one of each essential oil from each company, I've noticed that some are thicker than others and others are more watery. I thought the watered down version had less constituents in it and the thicker was more concentrated. On most of the thinner oils they do have a better aroma.
The thicker oils have usually been distilled with higher pressure and a much higher heat. They are thicker as its a "whole oil" not just the oil from the first distill. This thicker oil contains stage 1 oil and stage 2 oil. The oil that is easy to distill comes out first and the longer it is distilled and the hotter it gets the more of the stage 2 oil that comes out. The oil that makes up the tubules itself. The oil that is thick is more representative of all the essense of the plant, not just the part that gives off the thinner oil from low heat temperatures. At higher temperatures, more of the plants constituents can be released into the oil. Although more of the constituents are in the oil, the high heat can make it less therapeutic.
Note: in a temperature controlled environment, 100 drops of just say Sandlewood should weigh the same. If the oil is cut or they take the drum of oil and skim from the top but not stir the whole drum, the heavier constituents settle to the bottom and the weight of the top part can weigh less than the oil at the bottom of the barrel. I recommend everyone getting a scale and weighing a set amount of oil depending on the type.
By knowing the acceptable weight range for a certain oil and if I weight it and it is off by x amount, then I know something is off with the oil and it's up to me to figure out whats wrong. I know what the weight of 100 drops of high altitude lavender should weigh, so when another one is higher or lower, this is what I look for. But if the oil has the right weight and doesn't smell the same as pure 100% lavender, then I will try to find out if they added a filler to match the right weight of the oil. If someone wants thinner oil that has probably been distilled 3 times, that doesn't make it bad although it might weigh less as it has less constituents in it that are heavier, many people want this as it smells amazing.
NOTICE: Oils that are too thick can produce higher micron mists when diffusing them. See my diffuser page if you going to be using oils with a diffuser. Choosing the right psi of the pump combined with a higher or lower liters per minute and getting just the right power for the types of oils thats going to be used will help me know which brand of oil to use. If using lavender, for example in a diffuser, and someone wants a 1 micron size mist or smaller, then the brand that has the lowest density I would pick.
Some oils are so thick they pour slowly from the bottle and require an applicator wand as the viscosity of the oil stops the oil from dripping out of the bottle from the dropper. If you want to try the difference between a thick oil and a thinner oil of an essential oil, let me know on my contact form.
I am always looking for new feedback from the samples I give out. See my free sample page to order free samples of oils you want to try.
If 100 drops of one brand of oil a few grams less than the other brand, then I know something has been cut, added, or the batch wasn't stirred properly and I got skimmed off the top oil that they didn't give me the bottom constituents (heavy ones) that I paid for. This is where the value is. It's that bottom part.
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