Tea oil put 5 years is generally can not be used, need to try to use the shelf life of the tea oil, so as not to have an impact on the organism.
Tea oil shelf life is generally about 18 months, if it has been placed for 5 years, most of the deterioration or oxidation, the case, can not continue to use. If you consume expired tea oil, it may affect the gastrointestinal tract, inducing abdominal pain, diarrhea and other discomforts, and in severe cases, can also induce digestive diseases.
Usually in the use of tea oil before, need to observe its shelf life and its specific properties, if not over the shelf life, but the occurrence of deterioration, can not continue to eat.
It is recommended that when using tea oil, first observe its properties, shelf life, etc., if necessary, but also under the guidance of a doctor to rationalize the use.