According to relevant data, there are two kinds of Petri dishes: plastic and glass. Glass can be used for single-layer culture of plant materials, microorganisms and animal cells, and its performance is stable. Suspended cells belong to microbial species and grow in suspension in culture solution. Glass Petri dishes can meet the conditions of large-scale culture of suspended cells, and can be placed in Petri dishes after being digested by pancreatin.

Plastic Petri dishes are used for laboratory inoculation and bacterial separation, as well as plant material culture.