Grinder | Feed The Beast Wiki | Fandom
The Grinder is a machine from the Factorization mod, used to turn ores into ore gravel, part of a process to increase the output of your metals.. Out of all the ways to increase ore yield in Feed The Beast, the Grinder offers the highest yield for coal (3.5 per ore) and diamonds (2.25 per ore), and unless the secondary outputs of the Industrial Grinder are desired, the Grinder -> Mixer-> Slag