Recycling Soil..how Many Times Before Expired?

[JBloomers123]

I've gone 5-6-7 times using the same soil before discarding and starting anew. What does everyone else do?

 

[Buzzer777]

Just starting myself..Beginning with 50% new and 50% used (has already established microherd).

FFOF..FFHF..Coarse perlite..40..40..20.

 

[kansabis]

Same soil,ffof and ffhf with added perlite,I'm on 5th or 6th time through,no new soil added,it's pretty much been like coco after the 2nd or 3rd time with no remaining nutes and having to rely more heavily on bottles nutes.