Bacteriostatic water is the miraculous alternative to the traditional sterile water commonly found in standard clinical settings. With 0.9% benzyl alcohol, it allows vials to be reused for up to four weeks without immediate spoilage. Without this form of alcohol, it would be nothing but sterile water, which gets contaminated after only one week.
Now, it’s important to understand that just because you use bacteriostatic water, it doesn’t mean that it retains its properties if you mishandle it. In other words, handling and storage are still extremely important for preservation and overall safety.
So, does bacteriostatic water need to be refrigerated? Here’s what you need to know.
Bacteriostatic water doesn’t need to be refrigerated. The same rule applies before and after opening. Normally, you can keep bacteriostatic water at room temperature. This means it will retain its properties when stored at 68 to 77 degrees F.
It doesn’t mean that you can’t refrigerate it either. In fact, each option has its own pros and cons. What’s more important is to avoid direct sunlight, excessive heat and freezing temperatures, as these elements could damage it by breaking down the compound.
Most manufacturers recommend storing bacteriostatic water in a cool and dry environment, such as a cupboard, at room temperature. This means that you don’t have to refrigerate it. Once opened, it’s still safe to use for about four weeks. You can reuse it multiple times throughout this time frame.
In fact, if you check the label (which is highly recommended) for handling and storage instructions after you buy bacteriostatic water, you’ll see that most brands don’t recommend refrigeration. Sure, you can still do it, but it’s usually safer to keep it at room temperature.
Make sure it’s in a cupboard or drawer, somewhere away from direct sunlight and away from moisture-heavy zones like bathrooms.
This is the standard recommendation from producers, but then again, it’s not always perfect. Once again, each option has its pluses and minuses.
So, what could go wrong if you don’t refrigerate bacteriostatic water?
First, it’s worth noting that benzyl alcohol is a strong preservative, but it has its weaknesses. Heat is its main weakness.
When storing bacteriostatic water at room temperature, it could still be exposed to high heat. Even if it’s in a cool and dark drawer, very hot weather could cause everything in your house to heat up. Your drawers and cupboards may experience the exact same effect.
Both direct sunlight and high temperatures can cause benzyl alcohol to degrade much faster than normal.
So, does bacteriostatic water need to be refrigerated? No, it doesn’t. But if you live in a hot climate or a place with hot summers, it might be a good idea to refrigerate it. It’s not always the case though.
To play it safe, it might be wise to have a thermometer in the room or perhaps the cupboard. If the respective place has a decent temperature for the manufacturer’s recommendations, then there are no risks if you leave your water there, without refrigerating it. Just keep an eye on the temperature during the hottest parts of the afternoon.
So, when does bacteriostatic water need to be refrigerated? Before digging deeper, it’s worth noting that most refrigerators have a temperature range between 35 and 38 degrees F. Based on most manufacturers’ recommendations, this is a safe temperature for bacteriostatic water.
Refrigerating water won’t damage the solution.
Are there any benefits though? Not really. Unlike other things in your home, such as your food, cold storage won’t really extend the lifespan of bacteriostatic water. Once you open it, you still have 28 days to use it safely. The low temperature won’t make any difference in prolonging that fixed twenty-eight-day timeline.
The lifespan or limit of bacteriostatic water depends on the number of needle punctures, rather than the actual temperature.
Just like the other option, refrigeration isn’t perfect either, as it has its minuses. Moving a cold vial out of the fridge and putting it back in all the time will stimulate moisture and condensation.
Sure, that’s just extra water. The 0.9% benzyl alcohol should still keep it safe. But then, it’s much more difficult to disinfect properly. In other words, it’s an unnecessary risk that could transfer exterior contaminants straight into the vial during swabbing.
So, when does bacteriostatic water need to be refrigerated? Simply put, if you suspect that the temperature in your cupboards or drawers could go really high due to a heatwave or hot weather, move it into a refrigerator for safe storage.
Otherwise, it’s not worth it and won’t change anything in terms of properties, durability or lifespan since chilling the solution provides no extra preservative power beyond standard manufacturer specs.
Bottom line, does bacteriostatic water need to be refrigerated? According to most guidelines, you don’t have to refrigerate it, yet each option has good and bad parts, which means it largely depends on your personal living conditions and local room climate.
While there are some common-sense tips out there, you should still check the storage instructions on the label. Temperature and direct sunlight are the main things to consider. If everything is within recommendations, there’s nothing to worry about and you can proceed with using your vial.
MBTpg/APC