diff --git a/cura/Machines/MachineNode.py b/cura/Machines/MachineNode.py
index aa4db8bb8f9..67b8559b2e0 100644
--- a/cura/Machines/MachineNode.py
+++ b/cura/Machines/MachineNode.py
@@ -1,8 +1,9 @@
-# Copyright (c) 2019 Ultimaker B.V.
+# Copyright (c) 2024 UltiMaker
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from typing import Dict, List
 
+from UM.Decorators import deprecated
 from UM.Logger import Logger
 from UM.Signal import Signal
 from UM.Util import parseBool
@@ -168,13 +169,18 @@ def preferredGlobalQuality(self) -> "QualityNode":
 
         return self.global_qualities.get(self.preferred_quality_type, next(iter(self.global_qualities.values())))
 
-    def isExcludedMaterial(self, material: MaterialNode) -> bool:
+    def isExcludedMaterialBaseFile(self, material_base_file: str) -> bool:
         """Returns whether the material should be excluded from the list of materials."""
         for exclude_material in self.exclude_materials:
-            if exclude_material in material["id"]:
+            if exclude_material in material_base_file:
                 return True
         return False
 
+    @deprecated("Use isExcludedMaterialBaseFile instead.", since = "5.9.0")
+    def isExcludedMaterial(self, material: MaterialNode) -> bool:
+        """Returns whether the material should be excluded from the list of materials."""
+        return self.isExcludedMaterialBaseFile(material.base_file)
+
     @UM.FlameProfiler.profile
     def _loadAll(self) -> None:
         """(Re)loads all variants under this printer."""
diff --git a/cura/Machines/VariantNode.py b/cura/Machines/VariantNode.py
index b976841aa75..e037c9259dd 100644
--- a/cura/Machines/VariantNode.py
+++ b/cura/Machines/VariantNode.py
@@ -60,7 +60,7 @@ def _loadAll(self) -> None:
             materials = list(materials_per_base_file.values())
 
         # Filter materials based on the exclude_materials property.
-        filtered_materials = [material for material in materials if not self.machine.isExcludedMaterial(material)]
+        filtered_materials = [material for material in materials if not self.machine.isExcludedMaterialBaseFile(material["id"])]
 
         for material in filtered_materials:
             base_file = material["base_file"]
@@ -127,7 +127,7 @@ def _materialAdded(self, container: ContainerInterface) -> None:
         material_definition = container.getMetaDataEntry("definition")
 
         base_file = container.getMetaDataEntry("base_file")
-        if base_file in self.machine.exclude_materials:
+        if self.machine.isExcludedMaterialBaseFile(base_file):
             return  # Material is forbidden for this printer.
         if base_file not in self.materials:  # Completely new base file. Always better than not having a file as long as it matches our set-up.
             if material_definition != "fdmprinter" and material_definition != self.machine.container_id:
diff --git a/tests/Machines/TestVariantNode.py b/tests/Machines/TestVariantNode.py
index e15d64a4444..c84aaae36dc 100644
--- a/tests/Machines/TestVariantNode.py
+++ b/tests/Machines/TestVariantNode.py
@@ -46,7 +46,7 @@ def getInstanceContainerSideEffect(*args, **kwargs):
 def machine_node():
     mocked_machine_node = MagicMock()
     mocked_machine_node.container_id = "machine_1"
-    mocked_machine_node.isExcludedMaterial = MagicMock(return_value=False)
+    mocked_machine_node.isExcludedMaterialBaseFile = MagicMock(return_value=False)
     mocked_machine_node.preferred_material = "preferred_material"
     return mocked_machine_node
 
@@ -96,7 +96,7 @@ def test_variantNodeInit(container_registry, machine_node):
 
 def test_variantNodeInit_excludedMaterial(container_registry, machine_node):
     machine_node.exclude_materials = ["material_1"]
-    machine_node.isExcludedMaterial = MagicMock(side_effect=lambda material: material["id"] == "material_1")
+    machine_node.isExcludedMaterialBaseFile = MagicMock(side_effect=lambda material: material == "material_1")
     node = createVariantNode("variant_1", machine_node, container_registry)
 
     assert "material_1" not in node.materials