Conifgure-Furnace-Speed

Furnace-type blocks such as furnaces, blast furnaces and smokers process items one step at a time, and that pace governs how long a batch takes to finish. The mod gives control over that pace, so the number of ticks run per server tick can be raised to shorten waits during mass processing of ores, food or other materials. Players who build automated setups and want to remove idle time can use it to tune their production lines.

The current speed multiplier is shown on screen, and the setting is stored per world in a furnacespeed.cfg file that loads automatically whenever the world starts. Singleplayer and multiplayer are both supported, and the change takes effect immediately in singleplayer. On servers the command that changes the speed requires operator level 2, and by default the player running a singleplayer world holds operator status.

Configure-Furnace-Speed is a Fabric mod for Minecraft 1.21.2 and later, with builds for 1.21.2 – 1.21.11. It runs on the client and the server, so both sides need it installed, and it is released under All rights reserved, which makes it closed source. Source code and an issue tracker are publicly linked.