36/min growth potion using coal+seed

Here is a growth potion production setup rated a 40/min, with a real output of about 36/min using cauldron . fill the green chest at the back with growth potion or other fertilizer and conect the coal purchase portal FIRST . let the cauldron fill up, then bring fuel on the bottom-left side using a sibgle conveyor . make sur the recipe are correct : left side is clay right side is salt chamomile is supplied at the rate of 80/min to avoid overproduction and save growth potion