Agree 100%... That is my usual method... Small batch brews as I need it..
The vortex systems iv seen are generally way more than I would typically use at a time, which is why I asked my question
Edit - I brew for 48 hours, no more and no less...
Depending on what kind of tea you are meking, fungi dominant or bacteria dominant depends on the length of time you brew for, at the right temp(iv found 25° is good for me)
Fungi teas don't need a long brew time, but the bacteria need a 48 brew to fully chow the food you gave them, and multiply.
Edit 2 - if there is too much food still in the tea when you are finished brewing it, the microbes will be more inclined to eat the easy to eat food you give them, over the problems in your root zone that you are trying to fix... They will eat the problems... But will favour the food you give them until they are forced to eat the problems to survive...
So your tea might take a couple of extra days before you see the results you want to see.
It has never taken more than 3 days for my teas to work and see healthy new root growth