diff --git a/src/main/java/me/ramidzkh/mekae2/ae2/MekanismKey.java b/src/main/java/me/ramidzkh/mekae2/ae2/MekanismKey.java
index a8b269b..c3254b7 100644
--- a/src/main/java/me/ramidzkh/mekae2/ae2/MekanismKey.java
+++ b/src/main/java/me/ramidzkh/mekae2/ae2/MekanismKey.java
@@ -76,17 +76,13 @@ public ChemicalStack<?> withAmount(long amount) {
     }
 
     public byte getForm() {
-        if (stack instanceof GasStack) {
-            return GAS;
-        } else if (stack instanceof InfusionStack) {
-            return INFUSION;
-        } else if (stack instanceof PigmentStack) {
-            return PIGMENT;
-        } else if (stack instanceof SlurryStack) {
-            return SLURRY;
-        } else {
-            throw new UnsupportedOperationException();
-        }
+        return switch (stack) {
+            case GasStack ignored -> GAS;
+            case InfusionStack ignored -> INFUSION;
+            case PigmentStack ignored -> PIGMENT;
+            case SlurryStack ignored -> SLURRY;
+            default -> throw new UnsupportedOperationException();
+        };
     }
 
     @Override
@@ -141,17 +137,17 @@ protected Component computeDisplayName() {
 
     @Override
     public boolean isTagged(TagKey<?> tag) {
-        if (stack.getChemical() instanceof Gas gas) {
-            return tag.registry().equals(MekanismAPI.GAS_REGISTRY_NAME) && gas.is((TagKey<Gas>) tag);
-        } else if (stack.getChemical() instanceof InfuseType infuse) {
-            return tag.registry().equals(MekanismAPI.INFUSE_TYPE_REGISTRY_NAME) && infuse.is((TagKey<InfuseType>) tag);
-        } else if (stack.getChemical() instanceof Pigment pigment) {
-            return tag.registry().equals(MekanismAPI.PIGMENT_REGISTRY_NAME) && pigment.is((TagKey<Pigment>) tag);
-        } else if (stack.getChemical() instanceof Slurry slurry) {
-            return tag.registry().equals(MekanismAPI.SLURRY_REGISTRY_NAME) && slurry.is((TagKey<Slurry>) tag);
-        } else {
-            throw new UnsupportedOperationException();
-        }
+        return switch (stack.getChemical()) {
+            case Gas gas -> tag.registry().equals(MekanismAPI.GAS_REGISTRY_NAME)
+                    && gas.is((TagKey<Gas>) tag);
+            case InfuseType infuse -> tag.registry().equals(MekanismAPI.INFUSE_TYPE_REGISTRY_NAME)
+                    && infuse.is((TagKey<InfuseType>) tag);
+            case Pigment pigment -> tag.registry().equals(MekanismAPI.PIGMENT_REGISTRY_NAME)
+                    && pigment.is((TagKey<Pigment>) tag);
+            case Slurry slurry -> tag.registry().equals(MekanismAPI.SLURRY_REGISTRY_NAME)
+                    && slurry.is((TagKey<Slurry>) tag);
+            default -> throw new UnsupportedOperationException();
+        };
     }
 
     @Override
diff --git a/src/main/java/me/ramidzkh/mekae2/mixin/CondenserMEStorageMixin.java b/src/main/java/me/ramidzkh/mekae2/mixin/CondenserMEStorageMixin.java
new file mode 100644
index 0000000..071db20
--- /dev/null
+++ b/src/main/java/me/ramidzkh/mekae2/mixin/CondenserMEStorageMixin.java
@@ -0,0 +1,27 @@
+package me.ramidzkh.mekae2.mixin;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import me.ramidzkh.mekae2.ae2.MekanismKey;
+import mekanism.api.chemical.attribute.ChemicalAttributeValidator;
+
+import appeng.api.config.Actionable;
+import appeng.api.networking.security.IActionSource;
+import appeng.api.stacks.AEKey;
+
+@Mixin(targets = "appeng.blockentity.misc.CondenserMEStorage")
+public class CondenserMEStorageMixin {
+
+    @Inject(method = "insert", at = @At("HEAD"), cancellable = true)
+    private void onInsert(AEKey what, long amount, Actionable mode, IActionSource source,
+            CallbackInfoReturnable<Long> cir) {
+        if (what instanceof MekanismKey key) {
+            if (!ChemicalAttributeValidator.DEFAULT.process(key.getStack())) {
+                cir.setReturnValue(0L);
+            }
+        }
+    }
+}
diff --git a/src/main/resources/META-INF/mods.toml b/src/main/resources/META-INF/neoforge.mods.toml
similarity index 95%
rename from src/main/resources/META-INF/mods.toml
rename to src/main/resources/META-INF/neoforge.mods.toml
index e59a0c5..f8aa212 100644
--- a/src/main/resources/META-INF/mods.toml
+++ b/src/main/resources/META-INF/neoforge.mods.toml
@@ -13,6 +13,9 @@ displayURL = "https://github.com/AppliedEnergistics/Applied-Mekanistics#readme"
 logoFile = "logo.png"
 authors = "ramidzkh"
 
+[[mixins]]
+config = "appmek.mixins.json"
+
 [[dependencies.appmek]]
 modId = "neoforge"
 type = "required"
diff --git a/src/main/resources/appmek.mixins.json b/src/main/resources/appmek.mixins.json
new file mode 100644
index 0000000..95d919b
--- /dev/null
+++ b/src/main/resources/appmek.mixins.json
@@ -0,0 +1,9 @@
+{
+  "required": true,
+  "minVersion": "0.8.5",
+  "package": "me.ramidzkh.mekae2.mixin",
+  "mixins": ["CondenserMEStorageMixin"],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}