The storage temperature and humidity requirements for e-liquid are as follows:
Recommended range: E-liquid should be stored between 10℃ and 30℃ to minimize temperature fluctuations. Both excessively high and low temperatures can have adverse effects on the components of e-liquid, leading to changes in taste and aroma. For instance, high temperature may accelerate the decomposition of chemical components in e-liquid, while low temperature may increase the viscosity of e-liquid, affecting the atomization effect.
Extreme temperature risk
High temperature: Exceeding 30℃ may cause e-liquid to expand, leak, and even accelerate the decomposition of nicotine, generating harmful by-products.
Low temperature: Below 10℃, the fluidity of e-liquid may deteriorate, resulting in a burnt smell or a milder taste when atomized.
Special case handling: If it is impossible to maintain a constant temperature environment, you can store the e-liquid in the refrigerator (4℃ to 8℃), but be careful to avoid frequent opening and closing of the refrigerator door to prevent temperature fluctuations. Also, it should be stored separately from food to prevent cross-contamination of odors or accidental ingestion.
Recommended range: The humidity of the storage environment should be controlled between 10% and 70%. Excessive humidity may lead to the dilution or contamination of e-liquid. Although e-liquid itself is not prone to microbial growth, a humid environment may still trigger adverse reactions, such as the deterioration of e-liquid or the generation of unpleasant odors.
Humidity management measures:
Sealed storage: Store e-liquid in a sealed container (such as the original packaging bottle or dark self-sealing bag) to minimize contact with air and prevent moisture from entering.
Desiccant assistance: Place food-grade desiccants (such as silica gel bags) in sealed containers to further reduce the risk of humidity.
Risk of excessive humidity: When the humidity exceeds 70%, it may cause the e-liquid to absorb moisture, affecting the taste and atomization effect, and even leading to mold.
Store away from light: Ultraviolet rays can accelerate the decomposition of nicotine and flavoring in e-liquid, resulting in a poor taste. It is recommended to store e-liquid in dark containers or light-proof bags to avoid direct sunlight.
Sealing and anti-oxidation: The nicotine and flavoring components in e-liquid are prone to oxidation reactions with oxygen, resulting in a darker color and a bitter taste. When storing, make sure the bottle cap is tightly closed to prevent air from entering.
Avoid vacuum storage: A vacuum environment may disrupt the stability of e-liquid and even damage the components of e-cigarettes. Therefore, vacuum storage is not recommended.
Regular inspection: Long-stored e-liquid should be inspected regularly. If it shows a darker color (such as turning black), an odd smell (such as mold or sour odor), or a significant change in taste, it should be discarded immediately.