diff --git a/docs/source/configuration.rst b/docs/source/configuration.rst
index 01f8e04ba..74d477395 100644
--- a/docs/source/configuration.rst
+++ b/docs/source/configuration.rst
@@ -80,6 +80,27 @@ update-perms-on-world-change
 * **default**: false
 * **description:** When a player changes worlds the server recalculates their permissions and resends their available commands. This can be laggy, so the option is disabled by default
 
+grindstone
+~~~~~~~~~~~~~~~~~~~~~~
+* disallow-placement
+    - **default**: true
+    - **description**: Disallow placing blacklisted items into the grindstone UI slots
+
+* returns-zero-exp
+    - **default**: true
+    - **description**: Return 0 exp for blacklisted items in the grindstone
+
+* blacklisted-items
+    - **default**: {}
+    - **description**: List of blacklisted items for grindstone
+
+.. note::
+    Example of blacklisted-items:
+      * blacklisted-items:
+         - minecraft:tripwire_hook
+         - minecraft:stone
+         - minecraft:grass_block
+
 logger
 ~~~~~~
 * show-duplicate-entity-uuid-errors
diff --git a/patches/server/0056-Add-blacklist-option-for-grindstone.patch b/patches/server/0056-Add-blacklist-option-for-grindstone.patch
new file mode 100644
index 000000000..57394ad66
--- /dev/null
+++ b/patches/server/0056-Add-blacklist-option-for-grindstone.patch
@@ -0,0 +1,102 @@
+From 7f40cc38f5f6150023d2fddfe85838a04ae17059 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <blake.galbreath@gmail.com>
+Date: Thu, 1 Aug 2019 19:15:12 -0500
+Subject: [PATCH] Add blacklist option for grindstone
+
+---
+ .../minecraft/server/ContainerGrindstone.java   | 17 +++++++++++++++++
+ .../java/net/minecraft/server/ItemStack.java    |  6 ++++++
+ src/main/java/net/pl3x/purpur/PurpurConfig.java | 12 ++++++++++++
+ 3 files changed, 35 insertions(+)
+
+diff --git a/src/main/java/net/minecraft/server/ContainerGrindstone.java b/src/main/java/net/minecraft/server/ContainerGrindstone.java
+index ed88e208..0a5abd2e 100644
+--- a/src/main/java/net/minecraft/server/ContainerGrindstone.java
++++ b/src/main/java/net/minecraft/server/ContainerGrindstone.java
+@@ -57,12 +57,24 @@ public class ContainerGrindstone extends Container {
+         this.a(new Slot(this.craftInventory, 0, 49, 19) {
+             @Override
+             public boolean isAllowed(ItemStack itemstack) {
++                // Purpur start
++                if (net.pl3x.purpur.PurpurConfig.grindstoneBlacklistDisallowPlacement && net.pl3x.purpur.PurpurConfig.grindstoneBlacklist.contains(itemstack.getId())) {
++                    getBukkitView().getTopInventory().getViewers().forEach(viewer -> ((Player) viewer).updateInventory());
++                    return false;
++                }
++                // Purpur end
+                 return itemstack.e() || itemstack.getItem() == Items.ENCHANTED_BOOK || itemstack.hasEnchantments();
+             }
+         });
+         this.a(new Slot(this.craftInventory, 1, 49, 40) {
+             @Override
+             public boolean isAllowed(ItemStack itemstack) {
++                // Purpur start
++                if (net.pl3x.purpur.PurpurConfig.grindstoneBlacklistDisallowPlacement && net.pl3x.purpur.PurpurConfig.grindstoneBlacklist.contains(itemstack.getId())) {
++                    getBukkitView().getTopInventory().getViewers().forEach(viewer -> ((Player) viewer).updateInventory());
++                    return false;
++                }
++                // Purpur end
+                 return itemstack.e() || itemstack.getItem() == Items.ENCHANTED_BOOK || itemstack.hasEnchantments();
+             }
+         });
+@@ -106,6 +118,11 @@ public class ContainerGrindstone extends Container {
+             }
+ 
+             private int e(ItemStack itemstack) {
++                // Purpur start
++                if (net.pl3x.purpur.PurpurConfig.grindstoneBlacklistReturnsZeroExp && net.pl3x.purpur.PurpurConfig.grindstoneBlacklist.contains(itemstack.getId())) {
++                    return 0;
++                }
++                // Purpur end
+                 int j = 0;
+                 Map<Enchantment, Integer> map = EnchantmentManager.a(itemstack);
+                 Iterator iterator = map.entrySet().iterator();
+diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
+index 43e89b99..e538ba39 100644
+--- a/src/main/java/net/minecraft/server/ItemStack.java
++++ b/src/main/java/net/minecraft/server/ItemStack.java
+@@ -538,6 +538,12 @@ public final class ItemStack {
+         return !this.e() ? this.doMaterialsMatch(itemstack) : !itemstack.isEmpty() && this.getItem() == itemstack.getItem();
+     }
+ 
++    // Purpur start
++    public String getId() {
++        return IRegistry.ITEM.getKey(getItem()).toString();
++    }
++    // Purpur end
++
+     public String j() {
+         return this.getItem().f(this);
+     }
+diff --git a/src/main/java/net/pl3x/purpur/PurpurConfig.java b/src/main/java/net/pl3x/purpur/PurpurConfig.java
+index 20231143..ee83df5c 100644
+--- a/src/main/java/net/pl3x/purpur/PurpurConfig.java
++++ b/src/main/java/net/pl3x/purpur/PurpurConfig.java
+@@ -1,6 +1,7 @@
+ package net.pl3x.purpur;
+ 
+ import com.google.common.base.Throwables;
++import com.google.common.collect.Lists;
+ import net.minecraft.server.Block;
+ import net.minecraft.server.IRegistry;
+ import net.minecraft.server.MinecraftKey;
+@@ -171,6 +172,17 @@ public class PurpurConfig {
+         updatePermissionsOnWorldChange = getBoolean("settings.update-perms-on-world-change", updatePermissionsOnWorldChange);
+     }
+ 
++    public static boolean grindstoneBlacklistDisallowPlacement = true;
++    public static boolean grindstoneBlacklistReturnsZeroExp = true;
++    public static List<String> grindstoneBlacklist = Lists.newArrayList("minecraft:tripwire_hook");
++    private static void grindstoneBlacklist() {
++        grindstoneBlacklistDisallowPlacement = getBoolean("settings.grindstone.disallow-placement", grindstoneBlacklistDisallowPlacement);
++        grindstoneBlacklistReturnsZeroExp = getBoolean("settings.grindstone.returns-zero-exp", grindstoneBlacklistReturnsZeroExp);
++        List<String> blacklist = getList("settings.grindstone.blacklisted-items", grindstoneBlacklist);
++        grindstoneBlacklist.clear();
++        grindstoneBlacklist.addAll(blacklist);
++    }
++
+     public static boolean requireShiftToMount = true;
+     private static void requireShiftToMount() {
+         requireShiftToMount = getBoolean("settings.mobs.require-shift-to-mount", requireShiftToMount);
+-- 
+2.20.1
+