Sterile plastic petri dishes, 90x15mm for culturing bacteria or germinating seeds. Great prices when you buy 1 pack; unbeatable prices when you buy more.
Petri dishes can culture molds or bacteria or act as a small enclosed environment for insects and plant seedlings or even as a display case. These petri dishes are made from clear polystyrene and are sterilized.
We do not supply them with agar but gelatin ("jello") can be used instead although it liquifies around room temperature.
A very basic recipe for nutrient agar to grow bacteria would be:
% means weight by volume. In other words, if you have 1 litre of water (1000g), add 5g of powdered milk, 3g of beef extract (or ~1/5 of a bouillon cube) and 15g of agar. Mix & heat in a pressure cooker to sterilize, then pour into the petri dish, close the lid & let cool down.