Just thought I'd let you know the measurements I used with the echinacea. Like I said I used 1/2 gallon jars. I put 1-1/4 cup of each echinacea root in the jar and filled it about 1/2 full with vodka. I kept shaking it all day long and watching it because Uny had warned me about the swelling, echinacea is the worst one I've used for the swell factor!
Within about 3 hours I had to add more vodka and still more later on. I got up the next morning and I had to split the jars and add yet more vodka. The next time I tinctured the echinacea I used 3/4 cup of each root and that gave me about 2 inches of float but that made a very strong tincture.
When you put the root in the jar it doesn't look like much but believe me this is the ever expanding root lololol so BEWARE.
I did all my tincturing by myself, well my husband watched and laughed with me for a little while but you're doing it with the gals so you'll have a blast and if you're anything like me you'll laugh your head off and feel like a mad scientist!