Overview
Planet-Safe® Petri dishes from Diversified Biotech are made from polylactic acid (PLA), a biodegradable and compostable thermoplastic resin derived from non-GMO, renewable sugarcane. These dishes are Biopreferred certified and carry the ACT label, ensuring their environmental responsibility and sustainability.
Performance
Planet-Safe® Petri dishes may be filled with gelled culture media for growing bacteria, yeasts, and molds. They offer excellent optical transparency for microscopic examination of cells and outstanding resistance to many organic solvents, including alcohols, ketones, and hydrocarbons.
Disposal
Disposing of Planet-Safe® labware is convenient and environmentally sustainable. All Planet-Safe® labware is commercially compostable where available. When required, biohazardous Petri dishes may be incinerated, releasing a neutral amount of carbon dioxide and water. Planet-Safe® may also be disposed of in a landfill, providing a carbon sequestration benefit three times greater than that of polystyrene-based Petri dishes.
Temperature
PLA has a softening temperature lower than that of polystyrene. Accordingly, autoclave-sterilized agar-containing culture medium should be cooled to no more than 65°C before pouring. In most applications, the optimum pouring temperature for agar-containing culture media is 50-55°C, as this temperature limits the amount of undesirable moisture condensation. Applications pouring above 65°C should test Planet-Safe® Petri dishes prior to use. Additionally, after pouring media, dishes should remain undisturbed for 2-3 minutes before moving to prevent warping.