How to Store Your Hypochlorous Acid Properly
Written by: Emily Bernhardt, Product Development Chemist
We regularly receive questions regarding proper storage of hypochlorous acid products. It’s an understandable concern, especially in a world where product “tips” and storage advice can spread quickly online, without being fact-checked. We are here to help, with tips from our scientists on how to handle and store your favorite hypochlorous products!
WHY PROPER STORAGE MATTERS
Hypochlorous acid (HOCl) is an incredibly effective molecule, but it is also inherently sensitive. Its stability depends on the environment around it, including temperature, packaging, and exposure to contaminants. Controlling these variables through proper storage can help ensure that your Briotech products remain effective for as long as possible.
NOT ALL BOTTLES ARE THE SAME
A common misconception is that hypochlorous acid must be stored in glass containers to remain stable. At Briotech, extensive testing has shown that this is not the case. However, not all plastic types work equally well with HOCl.
Our products are packaged in PET (polyethylene terephthalate), a type of plastic that is highly compatible with hypochlorous acid. PET helps maintain product stability while also offering practical benefits—it is durable, light-weight, and fully recyclable. Each bottle is also sealed with an induction seal to protect the formula and preserve freshness until it reaches your home.
We do not recommend transferring Briotech products into untested spray bottles or containers. Not all plastics are compatible with hypochlorous acid, and materials that have not been validated in our labs may impact product stability. For best results, refill Briotech spray bottles directly from our refill containers! This guidance also applies across larger-format Briotech products, including select home + cleaning products designed for refill use.
OPTIMAL STORAGE CONDITIONS
To maintain the effectiveness of hypochlorous acid, it is important to keep your Briotech products at moderate temperatures.
Extreme temperatures – at or below 32°F (0°C) or above 77°F (25°C) – can accelerate the breakdown of HOCl. When this happens, the product does not become harmful. However, the active ingredient gradually degrades into saltwater, meaning that its disinfecting and skin-supporting capabilities become slightly diminished over time.
For this reason, we recommend avoiding prolonged storage in places like cars, garages, or basements where temperatures can fluctuate dramatically. Instead, we suggest household environments such as cabinets, pantries, or even the refrigerator.
Additionally, we advise against keeping your HOCl products in direct sunlight. So, avoid using a windowsill as a storage space for your HOCl products, and instead opt for a darker area such as a cabinet or pantry.
HOW TO PREVENT CONTAMINATION
Another important part of maintaining product stability is preventing contamination.
Always keep a cap or sprayer securely attached to your bottle and avoid leaving containers open for extended periods of time. Exposure to air, dust, and environmental microbes can gradually impact the formula.
Similarly, avoid dipping cotton pads, wipes, or other objects directly into the bottle. Introducing external materials can bring bacteria or debris into the solution, which may affect stability over time. Instead, spray the product onto the material (i.e. cotton pads or wipes) you plan to use for application, especially when using products like Briotech Topical Skin Spray.
THE BOTTOM LINE
Briotech products are carefully formulated and tested to ensure stability and performance.
To maintain that stability:
- Store products at moderate temperatures
- Keep them in Briotech-tested containers
- Avoid introducing outside materials into the formula
With proper storage, your hypochlorous acid products will remain effective and ready to support the many wonderful ways that you use them!
