Fast Recipes Mod Wiki › FAQ
Fast Recipes Mod FAQ
10 questions players actually ask, answered.
Does this mod actually reduce lag when I open my crafting table?
Yes—Fast Recipes Mod changes how the game searches through recipes so it only checks combinations that match what you've placed in the grid, rather than scanning every recipe in your modpack. This eliminates the freezing that happens when you open a crafting table or place items in the grid.
My game crashes when loading recipes at startup. How do I fix it?
Open the mod's configuration file and adjust the recipe loading settings—the wiki guide "Fix Recipe Loading Crashes at Startup" walks you through which setting to change. This usually happens in very large modpacks and can be resolved without uninstalling the mod.
Will this mod work with recipe viewer mods like JEI or EMI?
Yes, Fast Recipes Mod speeds up item searches in recipe viewers by optimizing how recipes are looked up. Searches that normally take several seconds should complete instantly, even in modpacks with hundreds of thousands of items.
I'm still getting lag spikes when crafting. What should I check?
See the guide "Diagnose Why Crafting Still Feels Slow" to rule out other causes—lag can also come from rendering, other mods, or server performance. Fast Recipes Mod handles the recipe lookup part, but other systems might need optimization too.
Can I use this mod on a multiplayer server?
Yes, the mod works on both single-player and servers. The guide "Use Fast Recipes Mod on a Multiplayer Server" covers server-side setup and any configuration differences you should know about.
Does this mod change how crafting recipes work or add new ones?
No—Fast Recipes Mod only changes the background math for how the game finds recipes. It doesn't add, remove, or alter any recipes; it just makes the lookup process much faster.
How much faster does this mod make crafting in huge modpacks?
The mod runs thousands of times faster than the base game during heavy crafting moments, especially in modpacks with over 100,000 recipes. The exact improvement depends on your modpack size and hardware, but the difference is noticeable immediately.
What happens if I place the wrong items in the crafting grid?
Normally this causes a lag spike as the game checks every recipe to see if it matches. Fast Recipes Mod prevents this by only looking at recipes that could possibly use those items, so failed crafts don't freeze your game.
Do I need to configure anything after installing this mod?
For most modpacks, no—the mod works out of the box. If your game crashes during startup recipe loading, you'll need to adjust one setting in the configuration file as described in the startup crash guide.
Will this mod help if my server is laggy?
Yes, if the lag is caused by players opening crafting tables or searching recipes. See "Use Fast Recipes Mod on a Multiplayer Server" for how to configure it server-side and measure the improvement.