Agar Agar Powder - 15 grams, Laboratory Grade

works well for petri dish prep. Color is less and texture is fine

We purchased petri dishes that didn't include agar on accident so I bought this to correct my error. It was for a simply homeschool project on fermentation. The agar was easy to mix and set up nicely. I will buy it again for our next project!

We learned the hard way this agar won't grow much of anything without adding some nutrients. After three experiments, with a total of 30 petri dishes, it grew nothing. We contacted our child's teacher who informed us we probably bought just the agar (gelatin). We used the remaining powder, seasoned with some bullion and sugar, and all 20 petri dishes grew fantastic colonies within a few days.The agar, itself, is actually of very good quality. It didn't dissolve in the incubator as regular gelatin did. I measured out five portions of 3 grams each which I mixed with 200ml of distilled water. This is enough to fill ten 80-100mm petri dishes with about 1.5 tablespoons of agar. Be sure to bring it to a boil, or it won't set. You could actually make the entire 15 gram package of agar with 1 liter of water and refrigerate the portion you didn't use. The agar will return to a liquid when heated.

This is my go to premix always consistent makes mycelium happy!

Was very easy to mix up an use in petri dishes. Very durable surface for inoculating - the gel doesn't tear easily.

Can't really comment on growth culture, ended up discarding dispatch due to some other problems. But it did set up well and looked like it was going to work.

I'm not sure if I did something wrong, but I made the agar just as instructed and it set up great in the petri dishes. I inoculated it with bacteria and had no growth in 48 hours. I then decided to try and salvage my project and tried again. I then scraped the surface of the agar and then inoculated it again with fresh bacterial colonies. Still no growth in over 48 hours. Sad to loose lots of time, effort, and $$.

We used it for a kids petri dish experiment - It worked great!