Borosilicate Glass Petri Dish Set — 20-Piece, 90mm Diameter

Glass petri dishes outlast plastic by decades, autoclave without warping, and allow UV sterilization — the choice of every serious microbiology and cell culture lab.

The 90mm diameter is the universal standard for bacteriology agar plates, crystal growth, and thin-film evaporation. Borosilicate glass tolerates repeated autoclave cycles at 121°C, UV germicidal lamp exposure, and direct immersion in 70% ethanol without crazing or clouding. Each dish has a close-fitting lid that reduces airborne contamination while allowing some gas exchange.

• 20 petri dishes (10 bases + 10 lids) — 90mm × 15mm borosilicate glass
• Autoclave, UV, and ethanol sterilization compatible
• Flat base for microscope stage; transparent for transmitted light imaging
• Packaged in sterile sleeve; reusable indefinitely with proper cleaning

Every purchase directly funds independent physics research at the Golden Physics Project.