diff --git a/kubejs/server_scripts/gregtech/recipes.materials.js b/kubejs/server_scripts/gregtech/recipes.materials.js
index 31e10161c..8b2b4d77e 100644
--- a/kubejs/server_scripts/gregtech/recipes.materials.js
+++ b/kubejs/server_scripts/gregtech/recipes.materials.js
@@ -750,7 +750,7 @@ function registerGTCEUMetalRecipes(event) {
 
 		const materialDustStack = ChemicalHelper.get(TagPrefix.dust, material, 1)
 		const materialIngotStack = ChemicalHelper.get(TagPrefix.ingot, material, 1)
-		const glassDustStack = ChemicalHelper.get(TagPrefix.dust, GTMaterials.Glass, 4)
+		const glassDustStack = ChemicalHelper.get(TagPrefix.dust, GTMaterials.Glass, 1)
 		const unfinishedLampStack = ChemicalHelper.get(TFGTagPrefix.lampUnfinished, material, 1)
 
 		event.recipes.gtceu.macerator(`tfg:macerate_${material.getName()}_lamp`)