How much agar to wort for plates?

[jasonclick]

I am going to make agar plates for streaking and have a question. I've seen recipe's for making agar. All of the ones I've found use DME. I'm planning on making some 2 row wort to pressure can for starters. I was going to use the same to make agar. My question is how much agar to i need to add to the wort? Is there a percentage of agar to wort? The agar I have I got from an asian food store so it's dry and would be weighing out however much is needed. Thanks for the help!

 

[trentm]

Should not matter whether you are using wort you mashed or DME (I also make and can wort). The agar you get from a lab supply usually calls for 15 to 20 g per liter so that's 1.5 to 2 g per 100 mL. For plates I prefer the the high end as it make a firm media that is easy to work with. I've not used the asian market agar.