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Nutrient Agar - 25 Gram Bag

Sometimes you just need a supply of nutrient agar...


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Item #: WAGR-250

Usually ships the next day.

Availability: In stock

Nutrient Agar - 25 Gram Bag

Sometimes you just need a supply of nutrient agar and now you have the source. Agar is pronounced "awger". It sounds like "blogger" without the "bl". Our nutrient agar is made from a seaweed derivitive and also contains a pancreatic gelatin made from beef bi-products to help promote the growth of bacteria. In a recent survey, 4 out of 5 bacteria preferred our nutrient agar over leftovers in your refrigerator. Comes with enough agar to fill 60 small (51 mm) Petri dishes, 30 large (101 mm) Petri dishes, or 20 jumbo (150 mm) Petri Dishes and instructions. Recommended for children ages 6 and up.

What's Included?
  • 25 grams of Nutrient Agar
  • 1 activity guide

Customer Reviews

pricey for both the petri dishes and the agar Review by Carol Fontana

pricey but works well. I filled 20 petri dishes with the above amount of awgar. That might be helpful if you put that on the package (Posted on 10/24/14)

Easy to use Review by Terri

My son used this for his double dipping science fair experiment. The agar was easy to use and he could see the bacteria begin to grow within a day and watched it continue to grow for a week. (Posted on 5/24/14)

Worked ok Review by Quinn

We bought this for my 3rd graders science fair project. It was easy to make and set quickly. However, All the bacteria looked the same from every surface we tested. Not sure if we did something wrong, but we cleaned each surface and then retested and it looks no different. Not sure what happened? (Posted on 3/2/14)

Perfect! Review by Natasha

I saw bacteria growth within days! It is perfect for my science fair project, and was easy to make and grow! Thank you!!!! (Posted on 4/17/13)

works great Review by kathy wilmovsky

This agar works really well. It mixes together easily and, boy, did the bacteria grow! The only negative is that it does have a pretty foul smell when you first cook it up, but it does work great. (Posted on 3/2/13)

very easy Review by joyce

Extremely easy and worked great. Shipped very fast. (Posted on 1/20/13)

Agar Review by jfierbaugh

Good method of preparing petri dishes without having time constrictions...I could schedule the experiment on my terms, not shipment dates. (Posted on 12/21/12)

great stuff Review by stacy ratel

This is perfect for using with my students. When preparing, don't over boil the water, because adding the powder will make your situation overflow, andthe clean up is awfully sticky. (Not that I know this from personal experience or anything...) (Posted on 12/1/12)

Petri Dishes Review by Sheri

We ordered the Petri dish kit for my 5th grader's science project, Who Would You Rather Kiss, Your Mom or Your Dog?. It worked very well and was easy to use. We will definitely order something from your website next year.

(Posted on 10/8/12)

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  • Is your agar made from seaweed?
    Yes and no. By definition agar is a seaweed derivitive. However, our nutrient agar also contains beef nutrients to help facilitate bacteria growth.