I use ferments as additives to 
compost, I don't use them directly on plants, 
it is a personal preference that is based on removal of ciliates and other parasitic organisms that can be found in anaerobic preparations. 
 If I was to use a ferment directly on plants I would first aerate it for around 24 hours to limit the numbers of parasitic and detrimental organisms present in the solution. 
 I would also probably dilute it at least 1:1  
 
 Redhawk