REPLACE:
To ensure zero gap in your 2-way humidity control, replace your Boveda every 3 months. Order replacement packs BEFORE Boveda is rigid all the way through to avoid a lapse in humidity protection in your cannabis container. 
Boveda is still working if you feel:
- Hardening at its corners 
- Soft spots among some hard areas 
Boveda is expired if:
- The entire pack feels rock solid all the way through 
 
                        