Talk about learning in essential oil bottles

Before talking about the containers of essential oils, first talk about the classification of essential oils by purpose. 

The first grade, edible grade essential oil, which is also the most rigorous level of essential oils, is also the first level of aromatherapy we usually mention. Especially in Europe, EU regulations have limits on the content of heavy metals including arsenic, lead, cadmium, and mercury. Management, in addition to pesticide residues is also a regulatory scope, because the test is expensive and non-food grades are generally not used
Second grade, medical grade essential oils, many European countries have pharmacopoeia, Codex to manage such essential oils 

Third grade, cosmetic grade essential oils 

Fourth grade, essential oils used in perfumery 

Fifth grade, industrial essential oils 

The containers for essential oils can be divided into containers for the consumption of essential oils according to the material. 

1, glass, the use of the third type of medicinal soda-lime glass (soda-lime glass) or colored light-blocking glass, whether or not the bottle of essential oil to be purchased up to this standard depends on whether the manufacturer supplies medicinal glass containers. 

2, stainless steel, must contain at least 13% chromium, and contains nickel or manganese

3, aluminum products, aluminum purity must be at least 99% of the quality, all impurities should not exceed 1% in total, quality 

The container for medicinal essential oil can be divided according to the material. The container of the essential oil can be divided according to the material. 

1, glass, use the third type, and meet the hydrolysis resistance in the pharmacopoeia standards, use colored matte glass bottles as much as possible 

2. For aluminum products, the purity of aluminum must be at least 99% by mass, and the total amount of all impurities must not exceed 1% 

3, plastic materials, as required by the general pharmacopoeia, special plastic containers subject to special appraisal 

Cosmetics, perfumery, industrial essential oils can be used in addition to the above containers, other plastic containers 

But it must pass through breath tests on carbon dioxide, oxygen, water vapor, fragrance, etc., as well as aging tests of the filled product.