How to Check Pepper Spray Expiration Date
By Quick Release Compact Hard CasejaV Pepper Spray 2 Pack - Lilac & Black... | Published: 2026-10-21
Category: How-to Guides
Learn how to find and read the expiration date on your pepper spray, why it matters, and when to replace it for reliable self-defense.
Quick Answer
Check the bottom or side of your pepper spray can for a printed expiration date or a lot code with a manufacture date, then replace it if the date has passed or you can't verify it.
Why the expiration date matters
Pepper spray relies on a pressurized propellant and the potency of its OC (oleoresin capsicum) formula. Over time, the propellant can leak or lose pressure, and the spray pattern may weaken or become unreliable. Using an expired can in a self-defense situation could mean it fails to stop a threat when you need it most.
That's why checking the expiration date isn't just about following a rule—it's a practical part of pepper spray maintenance. A can past its date may still spray, but its range and accuracy could be compromised.
How to check your pepper spray expiration date
- Locate the date or code: Look on the bottom of the can or on the side label for a printed expiration date (often 'EXP' followed by a month and year) or a lot code that includes a manufacture date. If you see only a lot code, check the brand's website or contact customer service to decode it.
- Read the date format: Expiration dates are usually formatted as MM/YYYY or MM/DD/YYYY. If the month and year have passed, the spray is expired and should be replaced. Some cans show a 'born on' date instead; add the typical shelf life (usually 3-4 years) to find the effective expiration.
- Verify the can's condition: Even if the date is still valid, inspect the can for rust, dents, or a weak spray when testing in a safe area. A damaged can may fail earlier than its printed date. If the can feels light or the spray sputters, replace it immediately regardless of the date.
- Replace when needed: Once expired or if you cannot confirm the date, dispose of the old can properly and purchase a new one. Using an outdated spray is not worth the risk. Set a reminder to check your pepper spray every 6 months as part of your self-defense spray care routine.
Product facts
- Mace Pepper Spray 2-Pack - Maximum Police Strength OC with UV Dye - Pink: The Mace Pepper Spray 2-Pack features a flip-top safety cap, keychain design, and a long-range stream with UV marking dye. The flip-top cap and keychain design make it easy to carry and access, while the UV dye helps law enforcement identify an attacker after use—features that remain effective only if the spray is within its shelf life.
Mace Pepper Spray 2-Pack - Maximum Police Strength OC with UV Dye - Pink
