How to Properly Store Test Strips (And Why It Matters)

If you've ever gotten a blood sugar reading that seemed completely off, your test strips might be to blame. Knowing how to store diabetes test strips properly is one of the simplest — and most overlooked — ways to protect the accuracy of your glucose monitoring. Let's walk through everything you need to know to keep your strips working their best.

Why Proper Storage Actually Matters

Test strips contain sensitive chemicals that react to your blood sample to produce a glucose reading. When those chemicals are exposed to heat, humidity, or air, they can degrade and give you inaccurate results — which can lead to poor diabetes management decisions.

• Inaccurate readings can lead to incorrect insulin dosing

• Degraded strips may read higher or lower than your actual blood sugar

• Damaged strips can waste money and supplies

• Accurate readings are essential for safe, confident diabetes management

The Biggest Enemies of Your Test Strips

There are a few common culprits that quietly ruin test strips before you even use them. Being aware of these hazards is the first step to protecting your investment.

• Humidity and moisture — including steamy bathrooms

• Extreme heat — like a hot car or sunny windowsill

• Freezing temperatures — which can alter the strip chemistry

• Direct sunlight exposure

• Leaving the vial open for long periods of time

The Golden Rules for Storing Test Strips

Following a few simple habits every day can make your test strips last and perform reliably all the way to their expiration date. These tips are easy to build into your routine.

• Always store strips in their original sealed vial or container

• Keep the cap tightly closed immediately after removing a strip

• Store at room temperature — ideally between 59°F and 77°F

• Keep strips away from windows, bathrooms, and car dashboards

• Never refrigerate or freeze your test strips

Where to Store Your Test Strips at Home

A cool, dry, and dark location is your best friend when it comes to test strip storage. Most people find a bedroom dresser drawer or a dedicated diabetes supply kit works perfectly.

• Bedroom nightstand or dresser drawer

• A dedicated diabetes supply pouch or case

• A kitchen cabinet away from the stove and sink

• A consistent spot that's easy to remember and access

Don't Forget to Check the Expiration Date

Even perfectly stored test strips can lose accuracy once they've passed their expiration date. Always check the date printed on the vial before testing, and never use strips from an open vial that's been sitting for more than six months.

Travel Tips for Keeping Strips Safe On the Go

Traveling with diabetes supplies takes a little extra planning, especially in extreme weather. Whether you're road-tripping or flying, a few precautions keep your strips protected.

• Use an insulated diabetes travel case to buffer temperature changes

• Never leave strips in a parked car during hot or cold weather

• Keep strips in your carry-on bag — never checked luggage

• Bring extra strips in case of spills, loss, or extended travel delays

Shop Diabetes Supplies at MDS Diabetes

Ready to stock up on quality test strips and supplies you can count on? Visit MDS Diabetes at mdsdiabetes.com or call us at (877) 861-3571 — our friendly team is here to help you find exactly what you need to manage your diabetes with confidence, every single day.