500 Pack Petri Dishes with Lids 90x15mm - Sterile Stackable Lab Dishes

In this review the reviewer finds these 500 pack petri dishes best suited for labs, classroom STEM work, and mycology hobbyists who need reliable, ready-to-use plates in bulk. The single biggest reason to buy is convenience: they arrive pre-sterilized and individually bagged, so users can open and use plates immediately without additional prep. For those who need clear observation and repeatable culture results, the combination of a thick polystyrene wall and crystal-clear transparency makes these dishes a practical, no-fuss choice.

Key Features

• Premium Material: Thick, laboratory-grade polystyrene provides a smooth surface that helps promote uniform culture growth and reduces surface defects that can interfere with observations.
• Ready-to-Use Sterility: Pre-sterilized with ethylene oxide (EO), these plates are suitable for mycology and agar work straight from the bag, saving setup time and contamination concerns.
• Crystal-Clear Observation: High-clarity plastic allows for easy, real-time monitoring under basic microscopes and photographic documentation without visual distortion.
• Ventilated Design: Loose lids promote gas exchange for cultures that benefit from oxygen access while the non-sealed cover still keeps most contaminants at bay.
• Space-Saving Stackability: Stackable construction reduces bench or storage footprint by roughly half, useful in classroom or cramped lab environments.
• Individually Bagged: Packaged 10 per bag to help maintain sterility until use, which simplifies inventory management and reduces waste from opened packs.

Who It's For

This product is aimed at educational labs, mycology hobbyists, and researchers running high-throughput plating who need a large quantity of uniform, sterile 90x15mm dishes for routine culture, storage, or observation. The pre-sterilized, individually bagged format is especially helpful for teachers managing multiple student groups and for hobbyists who want a ready supply without investing in sterilization equipment.

Those who need autoclavable, reusable glassware or sealed plates for anaerobic culture should look elsewhere, since these are disposable polystyrene plates with loose, ventilated lids. Users requiring specialized surface treatments or certified medical device grading should confirm suitability before purchase.

Pros & Cons

Pros

• Large 500 pack offers strong value for labs and classrooms with frequent use.
• Pre-sterilized EO treatment and individual bagging reduce prep time and contamination risk.
• Clear, thick polystyrene improves visibility under microscopes and feels durable in handling.
• Stackable design saves storage and bench space when not in use.

Cons

• Made from disposable polystyrene, so not suitable for autoclaving or long-term heat-based sterilization.
• Some users report mixed impressions of quality, so examine a sample batch before critical experiments.

Specifications

Brand	BIOLOGIX
Quantity	500 pack
Size	90 x 15 mm
Material	Thick laboratory-grade polystyrene
Sterilization	Pre-sterilized with ethylene oxide (EO)
Packaging	Individually bagged, 10 per bag
Design	Clear, loose lid ventilated and stackable

Our Verdict

These 90x15mm petri dishes are a pragmatic, cost-effective choice for educational labs, beginner mycologists, and routine plating tasks because they combine pre-sterility, clear optics, and durable polystyrene at scale. They offer good value when disposable plates are appropriate, though teams needing reusable or autoclavable ware should select a different product.

Frequently Asked Questions

Are these plates ready to use out of the package?
Yes, they are pre-sterilized with EO and individually bagged, so plates can be used directly after opening.

Will they work with standard microscopes?
The crystal-clear polystyrene is suitable for observation under most basic microscopes and lab imaging setups.

Can these be autoclaved or reused?
No, polystyrene plates are disposable and not recommended for autoclaving or repeated heat sterilization.