Killing weed seeds
When you compost in bins or windrows or even open piles, how can you be sure you've killed all unwanted seed? I would think the outer edges of the pile in the wire mesh type bins would stay cool enough for the seed to survive. I understand you are going to turn the pile, but will it stay hot long enough for the heat to be viable to kill all the weed seed?
I'm asking all this as I have a wealth of leaves available to me, but all of them are on burmuda lawns, and I don't want to be planting burmuda grass anywhere on my property, I hate the stuff. So I've avoided gathering the leaves because of this.
I'd sure appreciate some thoughts.
Presently I compost only in drums so I know ALL OF THE MATERIAL HAS HEATED TO KILL WEED SEED.