Laboratory & Chemical
Reusable borosilicate Petri dishes with loose-fitting covers, 30 to 150 mm diameter, for agar culture, colony counting and sample drying.
Specification
Product Knowledge
Background, typical uses and selection points for this product. We can send model drawings, technical data and samples to support your evaluation.
The Petri dish, devised by Julius Petri in Robert Koch’s lab in 1887, is the shallow round dish used to grow microorganisms on a layer of agar. Its loose, overlapping cover keeps airborne contaminants out while allowing a little gas exchange, so cultures can breathe without being exposed.
Glass dishes are reusable and autoclavable, which suits labs that culture heavily and want to cut single-use plastic, and borosilicate clarity makes colonies easy to examine.
Glass Petri dishes are used for microbial culture on agar, colony counting and isolation, cell and tissue work, plant tissue culture and seed germination, and for drying or evaporating small samples. Typical buyers are microbiology teaching labs, food and pharmaceutical QC labs, environmental monitoring labs and research groups. Larger diameters double as shallow trays for staining and sample handling, and small 30 mm and 60 mm dishes suit microscopy and contact work.
Each dish is a shallow borosilicate 3.3 base with a slightly larger cover that overlaps the rim and vents through the gap. Flat bottoms let agar set to an even depth and give a clear view for counting under a colony counter or microscope. Bases and covers are paired by size, and the glass withstands repeated autoclaving and dry-heat sterilization for long service life.
Sterilize dishes by autoclave or dry heat before use. Pour agar, let it set with the cover on, and incubate inverted so condensation doesn’t drip onto the culture. Keep the cover loose; sealing it cuts off gas exchange. After use, decontaminate cultured dishes before washing, and check for chips on the rim, which can hold contamination and weaken the glass.
We press or form the bases and covers from borosilicate 3.3 and anneal them for repeated sterilization. Base flatness, clarity and the cover-to-base fit are checked in production so plates stack and pour evenly. Options include soda-lime glass for lower-cost sets, and custom diameters and heights. Send us your diameters and quantities and we’ll quote with samples.
Customization
We specify the container, closure, decoration and transit packing as one package, so every part fits and arrives ready for your filling line.
Choose from standard sizes or request a custom capacity. We supply drawings with tolerances, label panel dimensions and nominal and brimful capacity.
We match caps, liners, pumps, droppers and stoppers to the neck finish and check the seal against your contents and filling process.
Flint, amber and colored glass, with frosting, spray coating, screen printing, hot stamping or labels. Material documentation is available on request.
Partitioned cartons, layer pads or bulk pallets, with shipping marks and pallet patterns planned for your route and warehouse.
Applications
Typical markets and uses. Tell us your contents, filling process and storage conditions and we will recommend the right model and components.
We confirm availability of the standard model, and review any changes to size, color, decoration or tooling for feasibility and lead time.
We send samples and specification sheets so you can check dimensions, component fit and finish before you place the order.
Your quotation covers packing design, shipping route, Incoterms and export documents, so landed cost is clear from the start.
Bulk Quote
Tell us the quantity, specifications and destination. We will reply with pricing, lead time, sample options and technical data for your chosen model.