If you put a limestone in the copmposter, it gives you 8 limestone. Then to return that to a limestone, it only takes 1. Essentially, for this bench, all you'll ever need is 1 limestone.
1=8, 8x8=64, 64x8=512 etc, etc
heavy forge
If you put a limestone in the copmposter, it gives you 8 limestone. Then to return that to a limestone, it only takes 1. Essentially, for this bench, all you'll ever need is 1 limestone.
1=8, 8x8=64, 64x8=512 etc, etc
Composter infinite Limestone bug
Same with Sulphur
1 Sulphur = 5, which turns into 5 sulphur.