01 Do not storage oxygen indicator in a strong light environment such as a part of room that sunlight could reach.
02 Do not storage oxygen indicator in a place which is ambient temperature beyond 25℃.
03 When oxygen indicator is fed into the product package which is sealed and stored in a room that temperature below 5℃,the induction process may slow down.
04 Do not to leave the oxygen indicator exposed to the air for a long time.
05 When oxygen indicator is applying to product its package environment is too dry or acidic, it may lead to the delay or failure of the oxygen indication.
06 When oxygen indicator is in contact with CO₂ which is generated by your product such as coffee or by bacteria,it may slowly change color even in the anaerobic environment and would not perform well.