Passive One-Way Valve
Vents built-up gas automatically so a small sample cures with the same consistency as a full batch.
Sample-Sized Headspace
Fill to 75-80% capacity so there's enough room for the valve to stabilize the internal microclimate.
Resealable Ziplock
Reopen to compare against other samples without losing the airtight seal between checks.
Clear Window
Visually track a sample's progress at a glance so it's easy to tell apart from others in storage.