When I first mixed my soil I could only find cheap hard EWC near me. I ventured a ways out and found a feed store that had an amazing selection. I ended up buying one called Solaris AG, I'm not sure if the rules allow me to link it but first thing to show up on Google. Seems to be really high quality stuff. I top dress with it once a week.
They add azomite, "mixed minerals", granite dust, calcium and magnesium, diatomaceous earth, coco coir, molasses, and innoculant. All of this is added to organic material that is then broken down by the worms.
"the finished castings are screened to 1/8” and sprayed with a solution of filtered water, molasses and beneficial microbes cultured at our facility and then slightly dried. some moisture is preserved to support microbial life in transit. you may find some small worms and egg cocoons in your bag"
They add azomite, "mixed minerals", granite dust, calcium and magnesium, diatomaceous earth, coco coir, molasses, and innoculant. All of this is added to organic material that is then broken down by the worms.
"the finished castings are screened to 1/8” and sprayed with a solution of filtered water, molasses and beneficial microbes cultured at our facility and then slightly dried. some moisture is preserved to support microbial life in transit. you may find some small worms and egg cocoons in your bag"