Microppose Reusable Autoclavable Petri Dishes – 90mm x 15mm (20-Pack Sleeve)
Microppose Reusable Autoclavable Petri Dishes – 90mm x 15mm (20-Pack Sleeve) is backordered and will ship as soon as it is back in stock.
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Description
Description
Microppose Reusable Autoclavable Petri Dishes are 90mm x 15mm polypropylene plates, 20 to a sleeve, built to be autoclaved and reused — so your cost per plate drops with every cycle.
Each dish weighs 17 grams, 20% thicker than typical disposable plates, so it handles repeated autoclave cycles, stacks securely and resists cracking. Triple-vented, precision-fit lids balance airflow during incubation to reduce condensation. They arrive factory-sterilized and ready for first use; after that, wash, autoclave and pour again.
- 20Dishes per sleeve
- 90 x 15mmStandard size
- 17g20% thicker
- 121°CAutoclavable
- 20+Reuse cycles
Why growers choose reusable dishes
- Lower cost per plate – Break-even versus single-use plates typically comes after just 4–5 reuse cycles.
- Built to last – 17-gram polypropylene construction is designed for repeated thermal cycling.
- Less condensation – Triple-vented lids allow controlled gas exchange during incubation.
- Clear for evaluation – Clear polypropylene makes it easy to watch mycelium growth and spot contamination.
- Less waste – One sleeve replaces hundreds of disposable plates over its lifetime.
What's included
- 20 factory-sterilized 90mm x 15mm polypropylene petri dishes with triple-vented lids, in a sealed protective sleeve
How to use and reuse them
- First use. Open the sterile sleeve in front of a flow hood or in a still air box, pour your agar, let it set, then inoculate and incubate.
- Clean. Scrape used agar into compost or trash (not down the drain), then wash with warm soapy water and a soft sponge and rinse well.
- Re-sterilize. Stack dishes in a filter patch bag or wrap them in autoclave-safe wrap and run 121°C / 250°F at 15 PSI for 30–45 minutes.
- Cool and pour again. Let dishes cool fully before refilling with fresh agar.
- Retire when worn. Replace dishes that show cloudiness, deep scratches, warping or cracks.
Polypropylene, not glass. Avoid dry-heat sterilization above 121°C, which can warp polypropylene over time, and skip abrasive scrubbers that scratch the surface. A dishwasher can clean them, but they still need autoclaving before sterile work.
Common applications
- Mushroom mycology – Agar pouring, isolation, cloning, sector selection and genetic library storage.
- Microbiology labs – Bacterial and fungal culture, sample plating and classroom microbiology.
- Plant tissue culture – Callus initiation, micropropagation and cannabis tissue culture.
- Classrooms – High school and university biology labs and science fair projects.
- Home labs – Any setting where culture work is ongoing rather than one-off.
Specifications
| Specification | Detail |
|---|---|
| Brand | Microppose |
| Quantity | 20 dishes per sleeve |
| Dimensions | 90mm diameter x 15mm height |
| Material | High-temp polypropylene (not glass) |
| Weight per dish | 17 grams (20% thicker than typical disposable plates) |
| Autoclave rating | 121°C / 250°F at 15 PSI |
| Reuse | Typically 20+ autoclave cycles with proper care |
| Lids | Precision triple-vented |
| Sterility | Factory-sterilized in a sealed sleeve |
| Origin | Designed in the USA, manufactured in India |
Buying in bulk?Microppose reusable dishes are also available in a 500-pack case and by the pallet with freight included. Contact us for wholesale pricing. To fill them, use our LME agar powder blend.
FAQ
Are these glass or plastic?
They're high-temp polypropylene plastic, not glass. Polypropylene handles repeated sterilization without the breakage risk of glass.
How many times can I reuse a dish?
With proper cleaning and handling, each dish typically handles 20+ autoclave cycles. Retire dishes that show cloudiness, deep scratches, warping or cracks.
What autoclave settings should I use?
121°C / 250°F at 15 PSI for 30–45 minutes. Avoid dry-heat sterilization above 121°C, which can warp polypropylene over time.
Do they come pre-sterilized?
Yes. They're factory-sterilized and sterile until you open the sleeve. After first use, you sterilize them yourself in an autoclave or pressure cooker.
What are the triple-vented lids for?
The vents allow controlled gas exchange during incubation, which reduces condensation that can drip onto your culture.
Can I use them for non-mushroom work?
Yes. They're general-purpose 90mm lab dishes suitable for plant and cannabis tissue culture, microbiology, classroom biology labs, science fair projects and home lab work.
Where are they made?
Microppose dishes are designed in the USA and manufactured in India.
