diff --git a/gradle.properties b/gradle.properties
index 58a353c0..e18f6a8d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 minecraft_version=1.20.1
 forge_version=47.0.16
-mod_version=0.8.41
+mod_version=0.8.42
 jei_mc_version=1.20.1-forge
 jei_version=15.1.0.19
 rubidium_cf_file_id=4573226
diff --git a/src/main/java/net/p3pp3rf1y/sophisticatedstorage/Config.java b/src/main/java/net/p3pp3rf1y/sophisticatedstorage/Config.java
index 02538e21..e2f43fe3 100644
--- a/src/main/java/net/p3pp3rf1y/sophisticatedstorage/Config.java
+++ b/src/main/java/net/p3pp3rf1y/sophisticatedstorage/Config.java
@@ -1,7 +1,10 @@
 package net.p3pp3rf1y.sophisticatedstorage;
 
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.Item;
 import net.minecraftforge.common.ForgeConfigSpec;
 import net.minecraftforge.fml.event.config.ModConfigEvent;
+import net.minecraftforge.registries.ForgeRegistries;
 import net.p3pp3rf1y.sophisticatedcore.upgrades.FilteredUpgradeConfig;
 import net.p3pp3rf1y.sophisticatedcore.upgrades.cooking.AutoCookingUpgradeConfig;
 import net.p3pp3rf1y.sophisticatedcore.upgrades.cooking.CookingUpgradeConfig;
@@ -14,6 +17,11 @@
 import net.p3pp3rf1y.sophisticatedstorage.upgrades.hopper.HopperUpgradeConfig;
 import org.apache.commons.lang3.tuple.Pair;
 
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
 public class Config {
 	private Config() {}
 
@@ -87,6 +95,7 @@ public static class Server {
 		public final StorageConfig goldShulkerBox;
 		public final StorageConfig diamondShulkerBox;
 		public final StorageConfig netheriteShulkerBox;
+		public final ShulkerBoxDisallowedItems shulkerBoxDisallowedItems;
 
 		public final StackUpgradeConfig stackUpgrade;
 		public final FilteredUpgradeConfig compactingUpgrade;
@@ -166,6 +175,7 @@ public Server(ForgeConfigSpec.Builder builder) {
 			goldShulkerBox = new StorageConfig(builder, "Gold Shulker Box", 81, 3);
 			diamondShulkerBox = new StorageConfig(builder, "Diamond Shulker Box", 108, 4);
 			netheriteShulkerBox = new StorageConfig(builder, "Netherite Shulker Box", 132, 5);
+			shulkerBoxDisallowedItems = new ShulkerBoxDisallowedItems(builder);
 
 			stackUpgrade = new StackUpgradeConfig(builder);
 			compactingUpgrade = new FilteredUpgradeConfig(builder, "Compacting Upgrade", "compactingUpgrade", 9, 3);
@@ -221,5 +231,48 @@ public LimitedBarrelConfig(ForgeConfigSpec.Builder builder, String storagePrefix
 				builder.pop();
 			}
 		}
+
+		public static class ShulkerBoxDisallowedItems {
+			private final ForgeConfigSpec.BooleanValue containerItemsDisallowed;
+			private final ForgeConfigSpec.ConfigValue<List<String>> disallowedItemsList;
+			private boolean initialized = false;
+			private Set<Item> disallowedItemsSet = null;
+
+			ShulkerBoxDisallowedItems(ForgeConfigSpec.Builder builder) {
+				builder.push("shulkerBoxDisallowedItems");
+				disallowedItemsList = builder.comment("List of items that are not allowed to be put in shulkerboxes - e.g. \"minecraft:bundle\"").define("disallowedItems", new ArrayList<>());
+				containerItemsDisallowed = builder.comment("Determines if container items (those that override canFitInsideContainerItems to false) are able to fit in shulker boxes")
+						.define("containerItemsDisallowed", false);
+				builder.pop();
+			}
+
+			public boolean isItemDisallowed(Item item) {
+				if (!SERVER_SPEC.isLoaded()) {
+					return true;
+				}
+
+				if (!initialized) {
+					loadDisallowedSet();
+				}
+
+				if (Boolean.TRUE.equals(containerItemsDisallowed.get()) && !item.canFitInsideContainerItems()) {
+					return true;
+				}
+
+				return disallowedItemsSet.contains(item);
+			}
+
+			private void loadDisallowedSet() {
+				initialized = true;
+				disallowedItemsSet = new HashSet<>();
+
+				for (String disallowedItemName : disallowedItemsList.get()) {
+					ResourceLocation registryName = new ResourceLocation(disallowedItemName);
+					if (ForgeRegistries.ITEMS.containsKey(registryName)) {
+						disallowedItemsSet.add(ForgeRegistries.ITEMS.getValue(registryName));
+					}
+				}
+			}
+		}
 	}
 }
diff --git a/src/main/java/net/p3pp3rf1y/sophisticatedstorage/block/ShulkerBoxBlockEntity.java b/src/main/java/net/p3pp3rf1y/sophisticatedstorage/block/ShulkerBoxBlockEntity.java
index f5890f54..62cc4b1f 100644
--- a/src/main/java/net/p3pp3rf1y/sophisticatedstorage/block/ShulkerBoxBlockEntity.java
+++ b/src/main/java/net/p3pp3rf1y/sophisticatedstorage/block/ShulkerBoxBlockEntity.java
@@ -16,6 +16,7 @@
 import net.minecraft.world.level.material.PushReaction;
 import net.minecraft.world.phys.AABB;
 import net.minecraft.world.phys.Vec3;
+import net.p3pp3rf1y.sophisticatedstorage.Config;
 import net.p3pp3rf1y.sophisticatedstorage.init.ModBlocks;
 
 import java.util.List;
@@ -88,10 +89,8 @@ private void updateAnimation(Level level, BlockPos pos, BlockState state) {
 
 	@Override
 	protected boolean isAllowedInStorage(ItemStack stack) {
-		//TODO add config with other things that can't go in
-		//TODO add backpacks compat so that they can't go in
 		Block block = Block.byItem(stack.getItem());
-		return !(block instanceof ShulkerBoxBlock) && !(block instanceof net.minecraft.world.level.block.ShulkerBoxBlock);
+		return !(block instanceof ShulkerBoxBlock) && !(block instanceof net.minecraft.world.level.block.ShulkerBoxBlock) && !Config.SERVER.shulkerBoxDisallowedItems.isItemDisallowed(stack.getItem());
 	}
 
 	private static void doNeighborUpdates(Level level, BlockPos pos, BlockState state) {