Observed arrival · 2026-09-22
Black Forest Cultures · The Screw-Top Agar Plate
Observed September 22: A Colorado maker presented a reusable, vented screw-top research agar plate designed to replace parafilm. The creator has since told Domain Arrivals that the project is currently on hold.
- For
- Researchers and cultivation practitioners using agar plates
- Worth noticing
- The plate uses 30 vertical vent channels through a three-turn buttress thread.
Field notes
The page presents a detailed control-drawing-style specification rather than only product photography or marketing copy. It contrasts a vented screw-top version with a sealed version, and gives concrete manufacturing dimensions including a 1.25 mm wall, 0.5 mm internal radii, and 1.5° draft angle. The first run is described as a tooling-funded pre-order, so availability remains tied to production.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue