Weeding or Harvesting Fertility?

I've been using comfrey tea made in 2020 that didn't get used last year. Still smells potent and is a spectacular deep burgundy colour. Nothing has died yet!!

Thanks PP
I agree, the question was almost rhetorical, it would have got used somewhere, waste not want not the rotting rotting gunk at the bottom will have to go way up the garden and buried in the compost or perhaps as a mulch in an out of the way place.  'I ain't afraid of no smells' to paraphrase

Ah, I pour mine off the rotting gunk after about ten days and store it in plastic (5*) wine bottles. Rotting gunk feeds the compost heap