6PK Polypropylene Petri Dishes with Lids - 95mm (3.75") Dish Diameter, 100mm (4") Lid Diameter, 13mm (0.5") Depth - Reusable Plastic Petri Dishes - Eisco Labs

Reusable and good quality

these dishes are not stamped PP5 although they do hold up in a pressure cooker. i’ve done multiple runs of MEA @15psi for 30 minutes with no warping or distortion.the dishes are slightly opaque but clear enough to study samples. some had smudges which cleaned up easy and a few small scratches but no big deal. they’re not sterile but the description says as much so i can’t fault them for that, just weird to individually package non-sterile materials.given the price and versatility, i would highly recommend these, i’ve already ordered more. these are a great alternative to disposable or glass petri dishes.

These came in a timely manner. My son uses them and likes them due to both cost and ease of being able to be sterilized for multiple uses.

Great petri dished. I was able to use them I. My pressure cooker at 15 psi for 45 mins. They are not clear, more like frosted. But you will still be able to see through them. Made two orders and only a few were damaged. The seller sent replacements ASAP. Great customer service. I would definitely buy from them again!

This type of plastic can take being autoclaved or pressure cooked without melting of even distorting multiple times. I have pressure cooked mine 1/2 a dozen times and no problems.For the price point they are the best, especially if you consider the cost of glass dishes of any type that can be dropped and broken.They are only slightly milky and clear enough to see what you need to see and thus far don't deteriorate with multiple pressure cooker cycles