100 Packs Sterile Thick Plastic Petri Dishes with Lid, Vabiooth 90mm Dia x 15mm Deep Clear 3 Vents Petri Dish for Lab Science Experiment

Decent dishes. No contam originating from the plates as far as I can tell. A bit pricey but they got the job done when just starting out and we're incredibly well packed. Like 3 vacuum sealed bags layered over eachother. So I commend them for that. Im sure they've contributed to a few kids sparked interest in biology and science. And that seems to be their goal. Keep them upside down and sealed once the seal is broken if refrigerated and not used right away.

Product arrived as expected. Only negative was the instructions did not include testing for airborne mold. However, a great positive is that this company has a qr code for FREE assistance. I used this free service both for instructions on airborne testing and then to help me analyze my results. They helped me identify my test growths and offered information on how this spore might affect our health, cause of growth, and how to remediate. Overall I was happy with the product and the support. Following are the instructions for airborne testing.... Yes, the PDA Petri dish can definitely be used to detect airborne mold spores in your home using the 'settling method.' In fact, you just need to follow the idea of 'exposing it to the air' to make it work. 💡 Core method: Plate settling method Technically, this method is called the 'plate settling method.' It is based on the principle that airborne mold spores naturally settle by gravity. If they land on PDA — a culture medium specifically designed for mold growth — they will germinate and grow under suitable temperature and humidity conditions, eventually forming visible colonies. By counting these colonies, we can roughly estimate the concentration of mold spores in the air. At the selected location, open the Petri dish lid and leave it exposed for 30 minutes. During this period, keep doors and windows closed, and avoid walking, sweeping, using fans, or any other activities that disturb air circulation. ➡️ This is the key step that replaces swab sampling. Sealing and incubation After exposure, close the lid and seal the dish tightly with plastic wrap to prevent spore dispersion. Place the dish upside down in a suitable room‑temperature environment, and incubate it away from light for 5–7 days, observing daily.

Eye opening! Find what mold and mites are hiding in your house! Dishes have ample thick agar, and are full sized. Easy to use and instructions are clear. Over all quality is great for the money.

This review goes along with the one for the logbook. My nephew had a school science experiment, of his choice, to complete in 30 days. He decided he would test surfaces and see just how dirty they were. Well, wasn't he surprised to see all that stuff growing from the agar I poured in the dishes? Stuff he swabbed from the counter, light switches, floor (in varying places), doorknobs, and even the toilet seat! They hold up nicely, as he is a little clumsy and dropped a couple, none broke. It might have affected the outcome of the experiment, though. But it was only 2, I believe. The value is great, getting 10 in one go. I was concerned when I bought them about the lid-locking, and most did. The ones that didn't, we taped shut. The experiment was a partial success as it didn't get him to wash his hands more often, but the teacher was impressed.

I’ve been using these for mushrooms cultivation. They work great. Very clean and easy to see contaminants before ruining a grain jar.

For those just getting into using agar petri dishes this is a good choice. It can be used for mushroom culture contamination checks, genetic propagation, and making agar slants at a price point where if you don't use them all while viable you're not wasting money.

It came as described. Easy to use. It comes with online support i haven't used yet.

All went red and molded my project bought some at same time for test plate and poured some myself only this brand went bad ..these are strictly for fun or science fair projects.

Good Petri dishes. 10 dish were in a sterile sealed bag. I only poured 9 because I never made enough agar but I got no contamination while pouring inside a SAB. Would love to be able to order in bulk.

I really do wish they would stop using camera angles to enhance their product.