diff --git a/common/src/main/java/muramasa/gregtech/blockentity/single/BlockEntityNuclearReactorCore.java b/common/src/main/java/muramasa/gregtech/blockentity/single/BlockEntityNuclearReactorCore.java
index bf99c634c..01ebb0ca5 100644
--- a/common/src/main/java/muramasa/gregtech/blockentity/single/BlockEntityNuclearReactorCore.java
+++ b/common/src/main/java/muramasa/gregtech/blockentity/single/BlockEntityNuclearReactorCore.java
@@ -4,6 +4,7 @@
 import io.github.gregtechintergalactical.gtcore.blockentity.IInventorySyncTile;
 import io.github.gregtechintergalactical.gtcore.network.MessageInventorySync;
 import io.github.gregtechintergalactical.gtcore.network.MessageTriggerInventorySync;
+import muramasa.antimatter.Ref;
 import muramasa.antimatter.blockentity.BlockEntityMachine;
 import muramasa.antimatter.blockentity.IPostTickTile;
 import muramasa.antimatter.capability.IFilterableHandler;
@@ -52,6 +53,7 @@
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import tesseract.TesseractGraphWrappers;
+import tesseract.api.item.ExtendedItemContainer;
 
 import static muramasa.antimatter.Ref.B;
 import static muramasa.gregtech.data.Materials.*;
@@ -122,14 +124,7 @@ public boolean wrenchMachine(Player player, BlockHitResult res, boolean crouch)
 
     public void syncSlots(){
         if (getLevel() != null && isServerSide()){
-            itemHandler.ifPresent(i -> {
-                i.getAll().keySet().forEach(s -> {
-                    var handler = i.getHandler(s);
-                    for (int i1 = 0; i1 < handler.getSlots(); i1++) {
-                        AntimatterNetwork.NETWORK.sendToAllLoaded(new MessageInventorySync(this.getBlockPos(), s, i1, i.getHandler(s).getItem(i1)), this.getLevel(), this.getBlockPos());
-                    }
-                });
-            });
+            sidedSync(true);
         }
     }
 
@@ -416,11 +411,6 @@ public void onServerTickPost(Level level, BlockPos pos, boolean aFirst) {
     @Override
     public void onMachineEvent(IMachineEvent event, Object... data) {
         if (event == SlotType.STORAGE){
-            if (data.length > 0 && data[0] instanceof Integer integer){
-                if (isServerSide() && getLevel() != null){
-                    AntimatterNetwork.NETWORK.sendToAllLoaded(new MessageInventorySync(this.getBlockPos(), SlotType.STORAGE, integer, getRod(integer)), this.getLevel(), this.getBlockPos());
-                }
-            }
             sidedSync(true);
         }
         super.onMachineEvent(event, data);
@@ -441,6 +431,35 @@ public void saveAdditional(CompoundTag tag) {
         tag.put("oldNeutronCounts", oldNeutronCountTag);
     }
 
+    @Override
+    public @NotNull CompoundTag getUpdateTag() {
+        CompoundTag nbt = super.getUpdateTag();
+        itemHandler.ifPresent(e -> {
+            CompoundTag in = new CompoundTag();
+            e.getAll().forEach((f,i) -> {
+                in.put(f.getId(), serializeWithEmpty(i, new CompoundTag()));
+            });
+            nbt.put(Ref.KEY_MACHINE_ITEMS, in);
+        });
+        return nbt;
+    }
+
+    public CompoundTag serializeWithEmpty(ExtendedItemContainer container, CompoundTag nbt) {
+        ListTag nbtTagList = new ListTag();
+
+
+        for(int i = 0; i < container.getSlots(); ++i) {
+            CompoundTag itemTag = new CompoundTag();
+            itemTag.putInt("Slot", i);
+            container.getItem(i).save(itemTag);
+            itemTag.putInt("count", container.getItem(i).getCount());
+            nbtTagList.add(itemTag);
+        }
+
+        nbt.put("Items", nbtTagList);
+        return nbt;
+    }
+
     @Override
     public void load(CompoundTag tag) {
         super.load(tag);