diff --git a/src/main/java/com/simibubi/create/foundation/item/ItemHelper.java b/src/main/java/com/simibubi/create/foundation/item/ItemHelper.java
index 995a0eebc..b2a454fb8 100644
--- a/src/main/java/com/simibubi/create/foundation/item/ItemHelper.java
+++ b/src/main/java/com/simibubi/create/foundation/item/ItemHelper.java
@@ -229,7 +229,7 @@ public class ItemHelper {
 		for (int slot = 0; slot < inv.getSlots(); slot++) {
 			if (extracting.isEmpty()) {
 				ItemStack stackInSlot = inv.getStackInSlot(slot);
-				if (stackInSlot.isEmpty())
+				if (stackInSlot.isEmpty() || !test.test(stackInSlot))
 					continue;
 				int maxExtractionCountForItem = amountFunction.apply(stackInSlot);
 				if (maxExtractionCountForItem == 0)