diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec34b41..15c6df9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1 @@
-- added MoStructures 
-- added custom window title and icon
-- changed tempad recipes
-- fixed austri3Fix emote (the irony lol)
-- fixed recipes
-- fixed some tags
-- updated options.txt
-- waystones in foreign claims are now usable
+- removed exploitable grinder recipes
diff --git a/overrides/kubejs/server_scripts/40-recipes.js b/overrides/kubejs/server_scripts/40-recipes.js
index d17bb01..6da967e 100644
--- a/overrides/kubejs/server_scripts/40-recipes.js
+++ b/overrides/kubejs/server_scripts/40-recipes.js
@@ -1,15 +1,31 @@
 function recipes(ev) {
-    ev.remove({output: "tempad:tempad"});
-
     // conflicts with copper nuggets
     ev.remove({output: "redstonebits:copper_button"});
 
+    const removeBrokenGrinderRecipe = metal => {
+        // This recipe allows to turn ingots back into raw ores,
+        // allowing infinite duplication.
+        ev.remove({
+            type: "techreborn:industrial_grinder",
+            input: `#c:${metal}_ingots`,
+            output: `#c:raw_${metal}_ores`
+        });
+    };
+    removeBrokenGrinderRecipe("copper");
+    removeBrokenGrinderRecipe("gold");
+    removeBrokenGrinderRecipe("iridium");
+    removeBrokenGrinderRecipe("iron");
+    removeBrokenGrinderRecipe("lead");
+    removeBrokenGrinderRecipe("silver");
+    removeBrokenGrinderRecipe("tin");
+    removeBrokenGrinderRecipe("tungsten");
+    removeBrokenGrinderRecipe("zinc");
+
     // this recipe makes alectrum out of copper. wtf.
     ev.remove({
         type: "create:mixing",
         output: "techreborn:electrum_ingot",
     });
-
     ev.custom({
         type: "create:mixing",
         ingredients: [
@@ -29,6 +45,7 @@ function recipes(ev) {
         C: "#c:copper_ingots",
     });
 
+    ev.remove({output: "tempad:tempad"});
     ev.shaped("tempad:tempad", [
         "GGG",
         "PCD",
@@ -39,7 +56,6 @@ function recipes(ev) {
         C: "powah:ender_core",
         D: "techreborn:digital_display",
     });
-
     ev.shaped("tempad:he_who_remains_tempad", [
         "ITF",
         "NSN",
diff --git a/settings.zig b/settings.zig
index 7a7b90b..36bd8a4 100644
--- a/settings.zig
+++ b/settings.zig
@@ -1,5 +1,5 @@
 // Version number used for the archive name
-pub const version = "1.4.0";
+pub const version = "1.4.1";
 pub const build_dir = "build";
 pub const minecraft_version = "1.18.2";
 pub const fabric_loader_version = "0.14.8";