Isahani ya petri ni ikintu kitaremereye, gifite silindrike, kibonerana, kandi mubisanzwe sterile ikoreshwa muri laboratoire yo guhinga mikorobe, nka bagiteri, ibihumyo, cyangwa ibindi binyabuzima bito. Yiswe uwayihimbye, Julius Richard Petri. Isahani ya petri ubusanzwe ikozwe mu kirahure cyangwa plastike isobanutse, kandi umupfundikizo wacyo ni munini wa diameter na convex gato, bigatuma ushobora guhunika byoroshye ibyokurya byinshi. Umupfundikizo urinda kwanduza mugihe ugifite umwuka uhagije.Ibiryo bya Petri byuzuyemo intungamubiri, nka agar, itanga ibidukikije bifasha imikurire ya mikorobe. Intungamubiri za agar, urugero, zirimo uruvange rwintungamubiri, harimo karubone, proteyine, nibindi bintu byingenzi bisabwa kugirango mikorobe ikure. Abahanga mu bya siyansi bakoresha ibyokurya bya petri mu ntego zitandukanye, harimo: Guhinga mikorobe mikorobe: Ibyokurya bya Petri byemerera abahanga mu muco no gukura mikorobe zitandukanye, zishobora kugaragara ku giti cyazo cyangwa zigakorerwa hamwe hamwe na hamwe. antibiyotike yanduye: Hifashishijwe disiki yatewe na antibiyotike, abahanga mu bya siyansi barashobora kumenya akamaro ka antibiyotike irwanya mikorobe yihariye bakareba uturere twabujijwe kuzenguruka disiki.Gukurikirana ibidukikije: Ibyokurya bya Petri birashobora gukoreshwa mu gukusanya ikirere cyangwa hejuru y’ubutaka kugira ngo hamenyekane ko hari mikorobe mu bidukikije, isuzuma rya mikorobe, ubushakashatsi.
