Angelica has a shelf life, usually around three years, but it is specifically related to the storage environment. Angelica is susceptible to mold and insect infestation, so it generally needs to be stored in a dry, cool, ventilated environment. If you don’t use angelica for a long time, you can store it in the refrigerator, but put it in a sealed glass bottle and refrigerate it, and put in a small amount of peppercorns when storing it, which can play a role in preventing insects. Be careful not to use iron containers for storage, because when angelica goes off the oil, it will cause the iron to rust, which will affect the herb. Although the shelf life of angelica is long, but poor preservation, angelica will be early mold or long insects, in this case you can not use the herbs, otherwise it will lead to adverse reactions in the body. If the preservation of angelica is more than three years, even if the surface of the herb does not have any corruption, this situation is not recommended to use, because the preservation time is too long the active ingredients of the drug has been changed, resulting in a reduction in the efficacy of the drug. So be sure to take Angelica within the shelf life, so that can be conducive to good health, if the preservation time is too long, or the phenomenon of mold and insects, it should be prohibited to use again.