13 best petri dishes
Petri dishes are shallow, flat, cylindrical, lidded containers made from glass or transparent plastic that are widely used in laboratories for various scientific and industrial applications. These dishes are named after their inventor, Julius Richard Petri, who introduced them in the late 19th century. Petri dishes are an essential piece of labware and are commonly used for culturing microorganisms, conducting experiments, and various other scientific tasks. Here are some key aspects of petri dishes and their uses:
Material: Petri dishes are typically made of either glass or plastic. Glass petri dishes are reusable and are often used for applications where sterility is critical. Plastic petri dishes are disposable and are preferred when avoiding contamination is crucial.
Shape and Size: Petri dishes are typically circular in shape and come in various sizes, ranging from a few centimeters to several inches in diameter. The standard size is 90-100 millimeters in diameter and about 20 millimeters in height.
Lids: Petri dishes come with fitted lids that help to maintain the sterility of the contents. The lids can be easily removed when necessary for access or observation.
Sterilization: Before use, petri dishes are typically sterilized by autoclaving or other methods to ensure that the environment inside the dish remains uncontaminated.
Microbial Culture: One of the primary applications of petri dishes is for microbial culture. Agar, a gel-like substance derived from seaweed, is often poured into the dish and allowed to solidify.Microorganisms like bacteria, fungi, and algae can then be cultured on the surface of the agar.
Observation and Analysis: Petri dishes are transparent, which allows scientists to observe the growth and behavior of microorganisms under various conditions. This is crucial for experiments in microbiology and other life sciences.
Colony Counting: Petri dishes are used for counting the number of colonies that develop from single cells or spores of microorganisms. This is a common method for estimating microbial populations.
Drug Sensitivity Testing: Petri dishes are employed in antimicrobial susceptibility testing to determine the effectiveness of antibiotics or other antimicrobial agents against specific microorganisms.
Plant Tissue Culture: Petri dishes are also used in plant tissue culture for the propagation of plants and studying their growth in controlled environments.
Chemical Reactions: In addition to biological applications, petri dishes can be used for various chemical reactions and crystallization experiments.
Storage: Petri dishes can be used to store samples temporarily or to keep cultures for further study.
Overall, petri dishes are versatile and indispensable tools in laboratories across various scientific disciplines, allowing researchers to cultivate, study, and experiment with a wide range of microorganisms and substances under controlled conditions.
Below you can find our editor's choice of the best petri dishes on the marketProduct description
Laboratory analysis for medical, biological,scientific research and other activities, suitable for general training.
Specification:
Material: Ethylene oxide sterilization
Color: Clear
Size: approx. 90 x 15mm (Diameter x Height)
Features:
1: Culture for fungi, bacteria, and other microorganisms
2: Deep hole bacteria culture dish allows longer incubation period
Package included:
20 x Plastic Petri Dish
10x 3ml Plastic Transfer Pipettes
10x 2ml Plastic Transfer Pipettes
- Sterile Plastic Petri Dishes: 20 Pack of 90mm diameter x 15mm deep Sterile Petri Dishes with Lids
- Special Material:Ethylene oxide sterilization, unvented, with lids, easy to use.
- Multifunction:Laboratory analysis for medical,biological,scientific research and other activities, suitable for general training.
- Package:20 Pcs 90mm x 15mm Petri dishes,20Pcs Plastic Transfer Pipettes (10Pcs 3ml,10Pcs 2ml)
- Warranty:We offer 30 days Money Back Guarantee and 12 months warranty, your satisfaction is our top priority.
User questions & answers
Question: | Can these survive the Instant Pot |
Answer: | These will not survive in a instant pot or a pressure cooker. The plastic is sort of flimsy so I don’t recommend it. I’ve gotten away with cleaning these with some bleach diluted in some water. |
Question: | How many plates does it have |
Answer: | Hello. 20 Pack petri dishes and 20 pcs transfer pipettes. Thanks. |
Question: | is this pp5 plastic |
Answer: | No, it is definitely NOT PP5. |
Question: | Do these have the nutrient agar gunk stuff on the bottom already to go? Or are they just plastic containers? thanks |
Answer: | Just the dishes |
Product description
Optically clear Petri Dishes made from virgin polystyrene plastic. 25 dishes. Sterile made for laboratory use. Venting rib cover for optimum bacterial culture growth.
User questions & answers
Question: | Can these be autoclaved |
Answer: | no, it can not be autoclaved. It is sterile. If you need to make agar plates, then you need to autoclave the agar medium and then pour it into the petri dish in a sterile prep hood. |
Product description
BACKGROUND INFORMATION:
LB stands for Luria Broth, a nutritionally rich medium, which is one of the most common media used in the laboratories worldwide.
LB medium is recommended safe for student use, whereas Tryptic Soy Agar medium is NOT suitable for student use due to its ability to amplify blood-born pathogenic bacteria.
KIT CONTENT:
1) 10x Pre-poured sterile LB-agar plates (100 x 15 mm Petri Dish)
2) 10x 6-inch sterile cotton swabs (2 per pouch)
3) Detailed Instruction
4) Free Science Fair Project E-Book
LB agar plates should be placed in a refrigerator upon arrival. LB-agar plates stored under such conditions have a minimum shelf life of 3 months.
BRIEF INSTRUCTION:
1) Take out one sterile cotton swab. Gently wipe a test area with the cotton swab to pick up bacteria. Here are some of the popular samples of the test objects: human or pet teeth, hands, phone, TV remote, restaurant menu, sink, floor, fruit, vegetable etc.
2) Take out one of the agar plates (No warm-up is needed). Open the agar plate and gently streak the agar plate with the cotton swab to transfer the bacteria onto the surface of the agar plate.
3) Cover the agar plate and place it in an upside-down position in an incubator with a temperature between 85 and 100 oF. A desk lamp or a portable heater can be used as a heat source.
4) Watch appearance of small bacterial colonies on the surface of the agar plates after 12-48 hr of incubation.
LIVE TECHNICAL SUPPORT:
EZ Prepoured LB agar plates are backed by our 100% money back guarantee. If more technical assistance is needed, we not only provide you with an email address, but also a telephone number to talk to our friendly laboratory tech support.
- The #1 BEST SELLING BACTERIA SCIENCE KIT ON AMAZON: Professional quality products and services at unbeatable prices! Lots of science fair competition awards! We offer 100% money back guarantee.
- THE SAFEST AGAR PLATES ON AMAZON: Luria Broth agar plates are used to grow environmental bacteria. By contrast, Tryptic Soy(TS) agar plates are used to grow pathogenic bacteria from clinic patients. Tryptic Soy agar plates will grow blood-born bacteria which are very dangerous in unprotected environments such as home and school. The amplified blood born bacteria could infect other family members, students and teachers. Be aware of the hidden health risk when using Tryptic Soy agar plates!
- BIOTECH QUALITY, FRESH AND READY-TO-USE: Factory-direct fresh 10 100-mm Pre-poured sterile LB-agar plates and 10 sterile 6-inch long swabs (in 5 pouches). Our plates are manufactured using the biotech GMP standards. Each plate has a fresh and thick layer of agar. Fresh plates promote faster and more bacterial growth as compared to aged stored plates. Re-sealable packaging convenient for re-use.
- FREE SCIENCE FAIR PROJECT E-BOOK: Packed with easy-to-do experiments with clear step-by-step instruction to help you winning science fair competition. Experiments range from testing simple 5 second rule to evaluating the effectiveness of antibacterial agents. Tips and advices are provided to avoid common mistakes.
- PEACE OF MIND: Any question? No worry. You will receive immediate live support with PhD scientists with extensive hands-on experience. A toll-free 800 number is provided. Before you buy or try, check out the vendor to see whether it has a telephone number or a physical address.
User questions & answers
Question: | How do you prepare the petri dishes if you dont have the instructions |
Answer: | The petri dishes come prepared with the agar (the yellowish gel in the picture). I kept them in the refrigerator until ready to use. They will keep in the refrigerator or even at room temperature for several months. |
Question: | How many plates does it have |
Answer: | 10 |
Question: | How would you properly dispose this |
Answer: | Wow, some of these responses. First, yes they will continue to grow bacteria, and can and will contaminate the area they are disposed. Soak them in bleach or alcohol. This will kill the bacteria and then they are safe to discard. Just throwing them away is extremely dangerous. And you shouldn't ever just toss them! |
Question: | Do you really have to incubate these? I just wanted a really simple homeschool experiment |
Answer: | No incubator necessary. The warmer the place, up to 98 F, the faster the growth. Room temp can even get some good growth after 3 days. Just speaking from personal experience growing bacteria with homeschoolers and working in the lab. |
Product description
These Stackable Petri Dishes are ideal for general laboratory use while Skippable Petri Dishes are designed for automated filling systems. Vented lids permit air circulation during incubation to reduce condensation build-up. Petri dishes are optically clear for easy viewing.
User questions & answers
Question: | Does this come in one giant bag or is it separated by a dozen easch so I can use a pack at a time and not have it become unsterile |
Answer: | It comes in sleeves of a dozen. |
Question: | Will these survive in the pressure cooker |
Answer: | No they wont. They would melt |
Question: | Do the lids fit snugly |
Answer: | No, the lids do not fit snugly, but that is not a problem for me. The other commenter is absolutely incorrect. |
Question: | are these glass or plastic |
Answer: | Plastic. |
Product description
Features partial edge ring on base which allows a single dish to be slid from a stack while enhancing stability when stacked. Ventilation ribs reduce condensation and allow air circulation. Consistent flatness allows for even media distribution. Flared lid skirt and squared corners for easy one-hand operation, especially with gloves. Stackable lid design for increased stability.
- Features partial edge ring on base which allows a single dish to be slid from a stack while enhancing stability when stacked
- Ventilation ribs reduce condensation and allow air circulation
- Consistent flatness allows for even media distribution
- Flared lid skirt and squared corners for easy one-hand operation, especially with gloves
- Stackable lid design for increased stability
User questions & answers
Question: | Are these vented |
Answer: | No |
Question: | Are they pressure cooker safe |
Answer: | Thank you for your question! No our petri dishes are not pressure cooker safe. |
Product description
Package Includes:30 x Plastic petri dish.
Material:Plastic.
Size:90mm(diameter) x 15mm(deep).
The plastic petri dishes are perfect for chemistry,biology,celebration,parties,nutrient agar,environmental bacteria,mold,yest,fungus,mushroom,microbes,organisms and other scientific research.
The sterile plastic petri dishes with lid are high quality with lids,easy to use in many situations.Round shape plastic petri dishe can be used to make amazing jello molds.You can use these petri dishes to help kids with their science experiment,medical-themed birthday parties,you can also use plastic petri dishes as gift boxes.
- Package Include:30 PCS sterile plastic petri dishes with lid.
- Size:90mm(diameter) x 15mm(deep) sterile plastic petri dishes with lids.
- Material:Optically clear Petri Dishes made from virgin polystyrene plastic.
- Multifunction:The sterile plastic petri dishes with lid are great for chemistry,biology,celebration,parties,nutrient agar,environmental bacteria,mold,yest,fungus,mushroom,microbes,organisms and other scientific research.
- Feature:These plastic petri dishes are high quality with lids,easy to use in many situations.Round shape plastic petri dishe can be used to make amazing jello molds.You can use these petri dishes to help kids with their science experiment,medical-themed birthday parties,you can also use plastic petri dishes as gift boxes.
Product description
About Us:
KEILEOHO is a company engaged in the production and processing of laboratory culture dishes and related medical products. Has a complete and scientific quality management system. The quality of our products is recognized by the industry. We value product quality and user experience, and customer satisfaction is our top priority
● The petri dishes are made of high-quality plastics and are designed to successfully complete the experiment. These products are made of medical grade polystyrene with a smooth surface and optimal transparency. They can be used for bacterial and cell culture.
● The Petri dish is transparent and has a very high definition during microscopic examination. The inner surface of the petri dish is flat, the cells grow uniformly to prevent agglomeration, and the ventilation holes on the lid are conducive to growth.
● The 3ml pipette of 100PCS is very suitable for this petri dish. The pipette is sterilized and packed in sterile packaging. The transparent, soft and easy to squeeze pipette is a good tool for transferring and measuring liquid.
Attention
● Transparent dishes help monitor the progress of cell culture without disturbing cell growth. Transparent cover allows marking different contents and conditions from outside to measure growth
● Mark the experiment number at the bottom of each petri dish. If the lid is detached, the culture can still be identified. These petri dishes are sterile and can be used in medical or professional environments.
Package Includes:
Petri Dish(80Pcs)
plus 3ml pipettes (200Pcs)
NO RISK:
If there is any quality problem, you can return the product and get a refund within 30 days from receiving. Just remember that your satisfaction is our first priority.
- STERILE CULTURE STORAGE FOR BACTERIA, FUNGI AND OTHER MICROBES - PVC material that allows storage of sterile culture for various strains of bacteria, fungi and other microbes. Safe and constant, easy to handle.
- SPECIAL TEXTURE - Endurance for epoxyethane sterilization. Standard petri dish with lid. PVC airtight, easy to clean.
- MULTIFUNCTIONAL - Suitable for basic analysis of medical, biological, scientific and other activities. Good for common training.
- PACKAGING CONTENT - Petri Dish 90mm/ 3.54 Inches (Diameter) × 15mm/ 0.59 Inches (Depth), 80Pcs per package plus 3ml pipettes (200Pcs).
- WORRY-FREE SHOPPING - Please do not hesitate to contact us if any issues with our petri dish, you can return the product and get a refund within 30 days from receiving. Just remember that your satisfaction is our first priority.
- COMPLETE SCIENCE KIT - The AGAR PLATES kit contains everything you need to carry out the science experience. Each kit includes 10 pre-poured agar plates, 10 sterile cotton swabs, 2 plastic droppers, and a easy to follow science experiment project guide.
- SAFE IS OUR PRIORITY - Our plates are sterilized using biotech industry standards. They are proved to be safe for kids.
- CONVENIENT, PRE-POURED PLATES. Our plates are ready-to-use. No need to prepare the plates yourself.
- SCIENCE FAIR PROJECT GUIDE: Packed with easy-to-do experiments with clear step-by-step instruction to help you winning science fair competition.
- SATISFACTION GUARANTEED: We're sure that the child will love this kit, but if you are not satisfied, we'll refund you, no questions asked.
Product features
Onnetila BACTERIA SCIENCE KIT PETRI DISHES
The AGAR PLATES kit contains everything you need to carry out the science experience. Each kit includes 10 pre-poured agar plates, 10 sterile cotton swabs, 2 plastic droppers, and an easy-to-follow science experiment project guide.
Each plate has a fresh and thick layer of agar. Fresh plates promote faster and more bacterial growth as compared to aged stored plates.
SIMULATES CHILD'S INTEREST
It stimulates children's scientific interest through fun scientific experiments, improves hands-on and thinking skills, and makes them focus on the fun.
SAFEST AND HIGHEST QUALITY
Our plates are manufactured maintaining the proper industry standards. Take out the plates and let them warm up to room temperature.
COMPLETE SCIENCE KIT
This is an excellent science kit to learn microbiology and great for science fair projects. Kids are going to love this science fair project kit.
Product description
Description of Goods
30 pack plastic petri dishes set with lids.
Each petri dish is 90 dia x15mm deep.
High quality clear plastic petri dishes are easy to use,suitable for general training,bacteria lab,science lab,mycology studies.
Petri dishes with lids are also perfect for kids school laboratory projects,school science projects,mad scientist parties,kids science birthday parties or gift boxes.
- Package:A pack of 30 clear petri dishes,each plastic petri dishe has a lid.
- Size:Each petri dish is 90 x 15mm.Plastic petri dishes are pefect for kids school projects,laboratory analysis for medical.
- These plastic petri dishes are high quality with lids,easy to use in many situations.Round shape plastic petri dishe can be used to make amazing jello molds.
- You can use these petri dishes to help kids with their science experiment,medical-themed birthday parties,you can also use plastic petri dishes as gift boxes.
- Plastic petri dishes made for laboratory use,suitable for general training,bacteria lab,science lab,mycology studies.
User questions & answers
Question: | Are these sterile |
Answer: | They are not marked sterile, but after 20 plates of mushroom clones I've have one plate with contam and that likely came off the original mushroom. |
Product description
Specifications:
Material: Plastic
Size: 90 dia x15mm deep
Package includes:
20 x Sterile Petri Dish
20 x Plastic Transfer Pipettes
Notice: We offer 30 days Money Back Guarantee and 12 months warranty, your satisfaction is our top priority
- Sterile plastic petri dishes with lids made of premium polystyrene plastic,strong and durable, safe and non-toxic. Round shape plastic petri dishe can be used to make amazing jello molds.
- The package comes with 20pack 90mm x 15mmclear petri dishes with 20pack 2ml Plastic Transfer Pipettes. Each plastic petri dishe has a lid, sufficient quantity can styles for satisfying your different needs.
- These plastic petri dishes ethylene oxide sterilization,easy to use. Petri dishes are pefect for kids school projects,laboratory analysis for medical, biological,scientific research and other activities. You can choose to use according to your needs.
- Our petri dishes great for general training,bacteria lab, science lab,mycology studies. You can safely use it to cultivate fungi, bacteria and other microorganisms. You can also use plastic petri dishes as gift boxes.
- If you looking for reliable science biology supplies, quality petri dishes is your ideal choice. You can use these petri dishes to help kids with their science experiment,medical-themed birthday parties.
- HIGHEST RATED AND BEST AGAR PLATES AVAILABLE! EVERYTHING YOU NEED TO DISCOVER THE SCIENTIST WITHIN YOU! Each kit includes 10 pre-poured agar plates, 10 cotton sticks, 2 plastic droppers, 1 vial of water, simple instructions, and a science experiment ebook project guide.
- SAFEST AND HIGHEST QUALITY AGAR PLATES AVAILABLE USING INDUSTRY STANDARDS. Our plates are manufactured using technology and standards routinely used in industry. They have a thick layer of agar to promote optimal growth and to prevent them from drying out and cracking. Finally, the packaging of the plates allow them to last longer.
- CONVENIENT, PRE-POURED PLATES. Our plates are pre-made and ready for you to use. There is no need to melt agar and pour the plates yourself, which can be dangerous and time consuming. Because our plates are professionally manufactured, you can be sure that the quality and thickness of the agar in each of our plates is equivalent!
- ONLINE EXPERIMENT EBOOK: Take a whole new range of ideas about interesting, mind-blowing experiments in the experiment ebook we send you with your kit. Explore different household or classroom items and be the savant in your science class.
- 100% NO QUESTIONS MONEY BACK GUARANTEE: We are confident you are going to love your science fair project kit and recommend it to your friends. In case you are not absolutely thrilled with it, we will gladly refund you in full.
User questions & answers
Question: | Does it come with an identification book to help ID some of the more common bacteria |
Answer: | Hi Multi-task Mama, thank you for your great question. It does not, but there are several online resources we can send you to help you identify what is growing on your plates. Contact us directly, and we would be happy to help you out! |
Question: | how long does the kit last for? I am buying an early present and it will sit in a closet for a while |
Answer: | I was very impressed with how these were packacged! They are vacuum sealed, unlike when you normallly buy plates for a professional lab, and they are not vacuum sealed. These also have a good thick layer of agar, so that'll make them less likely to dry out, also. |
Question: | Are the results easy to see or do you need a microscope |
Answer: | The results are very easy to see. I'm sure a microscope would be fun for a closer look at what you are growing, but it is easy to see the differences between various experimental conditions. |
Question: | How big are the plates? I wanted to use my daughter's hand print to show the importance of washing hands |
Answer: | Hi Rebecca, this is a great idea for an experiment and one that is included in our ebook. Our science kit plates are about 10cm in diameter, so it is probably a little too small for your daughter to put her entire hand on the prepoured agar plate. What we recommend for this experiment is to either put part of her hand on the plates before and after washing her hands or to use the cotton tipped applicators to swab bacteria off her hands and wipe them on the plates before and after hand washing. Our science kit also has a bottle of hand sanitizer so you can compare hand washing in a sink versus sanitzer. |
Product features
HIGHEST RATED AND BEST QUALITY
Customers love our petri dishes, because they are the highest quality available. We make nutrient rich plates each week, pour a thick layer of agar, and all plates are made using biotech standards. These are the best performing plates available. Don't waste time and effort ordering old plates.
EXPERT CONSULTATION AVAILABLE
We are very lucky to have several PhD scientist consultants available at Evviva Sciences. Just send us a message, and we will help you in any way we can. Some of the help we provide includes: 1. Interpreting your experiment results, 2. Help setting up your experiment for a science project, 3. Evaluating your science project and offering suggestions. Ask us any question, and we will help you out!
WIN YOUR SCIENCE FAIR
Science fairs can be very challenging in terms of deciding on an idea and setting up your experiments. Our kit provides results in just a few days if you are on a time crunch, and the results are fun and easy to report. Our Amazing Bacteria Kit has produced multiple science fair winners!
DOWNLOAD OUR EXPERIMENT EBOOK
Our kit comes with our ORIGINAL experiment eBook download. Please don't be fooled by knock-offs. Test different hypotheses, determine which items are the dirtiest, and try many other experiments. Our guide is a great help for setting up your science project!
FUN AND COMPLETE KIT
Our kit includes simple instructions, a downloadable experiment ebook, multiple cotton applicators for testing different items, 10 nutrient rich agar petri dishes, plastic pipettes, and a vial of water. Our kit includes everything you need, and we offer expert consultation for your science project.
SAFEST AND EASIEST TO USE
Because our plates are made weekly and nutrient rich, they perform better than others. The kit is easy to use and fun. It is a great experiment for school or homeschool science projects!
Product description
Suitable for laboratory inoculation, scribing, and bacterial isolation.
Deep hole bacteria culture dish allows longer incubation period, Ideal for phage typing, susceptibility testing, plate counts, and probe assays.
Package included:
20pcs Plastic Petri Dish
10pcs 3ml Plastic Transfer Pipettes
10pcs 2ml Plastic Transfer Pipettes
- Petri dish material: medical grade polystyrene; Transfer pipette material: polyethylene, clear readable markings.
- Color: transparent
- Size: 90 x 15mm (DxH)
- Bottom and lid inside and outside microscopic flat and transparency, uniform distribution of media.
- Package Include: 20Pcs Sterile Plastic Petri Dish, 10Pcs 2ml Plastic Transfer Pipettes, 10Pcs 3ml Plastic Transfer Pipettes
Product description
➤Reliable science/ biology supplies.
➤Grab a set of our plastic petri dishes and deliver amazing jellos, gummy bears or anything you want!
Package Included:
20x Petri Dishes(90 x 15mm)
10x Transfer Pipettes(3ml)
- SAFE PACKAGE: Our petri dish sets are carefully packaged in safe boxes to avoid broken during shipping or get contaminated.
- Comes with 20pack 90 x 15mm petri dishes and 10pack 3ml plastic transfer pipettes.
- Reliable science/ biology supplies: If you have a science fair coming up and you’re looking for quality petri dishes, this is your ideal choice!
- Our petri dishes can also be your favorite party supplies! Their shape allows you to make amazing jello molds, gummy bears and many other novelties!
User questions & answers
Question: | Can i sterilize this in my pressure cooker/autoclave? is it meant for that |
Answer: | No, they come presterilized. You would need to by glass in order to do that not plastic. |
Latest Reviews
View all
Samsung In Ears
- Updated: 16.02.2023
- Read reviews

Hot Sauce Gift Sets
- Updated: 28.04.2023
- Read reviews

Condor Outdoor Outdoor Sunglasses
- Updated: 23.02.2023
- Read reviews

Quietest Bathroom Fans
- Updated: 17.05.2023
- Read reviews

Pyle Ip Cameras
- Updated: 17.03.2023
- Read reviews