I don't know what I did wrong, but this didn't work for me.

I followed the recipe, except I used what I am guessing are smaller canning jars than you use (1 pint, I used two). I used at least 14 grams of low-grade bud as well as an equal amount of vape duff with 1.5 sticks (12 tablespoons) of butter. I used a potato ricer as well as a permanent coffee filter to strain.

The only thing I did differently is I let it go an extra hour or so on the extraction, still shaking the container every 20 minutes or so. (I couldn't remember what time I started and figured I'd be better off going too long than too short). I never let it get past a gentle simmer. I also did the separating in the fridge in a pyrex container instead of the canning jars, but that shouldn't affect anything.

I ended up with around 8 tablespoons of very "grassy" smelling green butter. By grassy I don't mean weedy, I mean the smell was more like lawn clippings than marijuana.

Since this is the first time I've ever done this, and I thought I'd have pretty good potency, I began by eating 1 teaspoon on toast a half hour apart until I felt effects. By four hours I was up to 2 tablespoons and I was feeling nothing. I then ate another tablespoon by making little balls with it and swallowing it with a gulp of water. In the end I ate about half the butter, and at best effects were very mild, and might have even been wishful thinking. By the 4th hour of feeling nothing I started hitting my vaporizer.

Tonight I decided to finish off the butter a little faster, and I hadn't eaten anything in about 8 hours. With half the butter left, I ate two tablespoons at once on toast (instead of spreading it over two hours), then about 45 minutes later another tablespoon, and about 45 minutes after that I ate the last tablespoon.

Effects, if any, are extremely mild. I'm warming the vape as I type this.

What could I possibly have done wrong?