North Spore - Pre-Poured Sterile Agar Slants - 5 CT - Case of 10Easily store mushroom cultures for up to a year with North Spore Pre Poured Sterile Agar Slants. Each 15 ml polypropylene tube contains approximately 10 ml of pre sterilized potato dextrose agar (PDA) or malt extract agar (MEA). Features Agar slants allow you to store refrigerated mushroom cultures for up to a year Pre poured with potato dextrose agar (PDA) or malt extract agar (MEA) Professionally sterilized to prevent contamination of fungal culture