Different yields ratios to produce an oil

Sweet Orange oil

100KG of sweet orange peel is required to produce 200-400Ml of essential oil. The process can happen anytime during the harvest season with little or no variation in the essential oils produced. 

Rose Oils

On the other hand, 3.5-4 tons of roses are required to produce just 1kg of oil, and the process is more time-consuming. They also need to be harvested at a specific time during the early day to retain as much of the oil in the plant as possible, and it requires intensive manual labour to get the rose petals in the best condition.

Know the source of your oil

Knowing the source of the essential oils used in blends can have a great impact on the environment it is harvested from and the people that rely on it.

Know what is in your oil

One way to avoid wasting expensive oils is to know the chemistry of the essential oil being used and to have a reason to use them. In some cases, you can substitute it with a more accessible and sustainably viable oil that can offer similar therapeutic value. 

Substitute Oils when you can

Scent is a more difficult one to replace, but with clever blending a close match can be achieved. If scent is the only factor that you need out of a product, then natural identical or sometimes even synthetic scents that are expertly blended by trained perfumers and scent creators can be just as nice even if they lack the therapeutic values of a natural product.