diff --git a/src/Properties.php b/src/Properties.php
index ac4d539..1381b26 100644
--- a/src/Properties.php
+++ b/src/Properties.php
@@ -2,7 +2,6 @@
 
 namespace ipl\Stdlib;
 
-use Closure;
 use OutOfBoundsException;
 
 /**
@@ -13,12 +12,6 @@ trait Properties
     /** @var array */
     private $properties = [];
 
-    /** @var array */
-    private $mutatedProperties = [];
-
-    /** @var bool Whether accessors and mutators are enabled */
-    protected $accessorsAndMutatorsEnabled = false;
-
     /**
      * Get whether this class has any properties
      *
@@ -38,17 +31,7 @@ public function hasProperties()
      */
     public function hasProperty($key)
     {
-        if (array_key_exists($key, $this->properties)) {
-            return true;
-        } elseif ($this->accessorsAndMutatorsEnabled) {
-            $mutator = 'mutate' . Str::camel($key) . 'Property';
-
-            if (method_exists($this, $mutator)) {
-                return true;
-            }
-        }
-
-        return false;
+        return array_key_exists($key, $this->properties);
     }
 
     /**
@@ -78,14 +61,6 @@ public function setProperties(array $properties)
      */
     protected function getProperty($key)
     {
-        if (isset($this->properties[$key]) && $this->properties[$key] instanceof Closure) {
-            $this->setProperty($key, $this->properties[$key]($this));
-        }
-
-        if ($this->accessorsAndMutatorsEnabled) {
-            $this->mutateProperty($key);
-        }
-
         if (array_key_exists($key, $this->properties)) {
             return $this->properties[$key];
         }
@@ -108,29 +83,6 @@ protected function setProperty($key, $value)
         return $this;
     }
 
-    /**
-     * Try to mutate the given key
-     *
-     * @param string $key
-     * @todo Support for generators, if needed
-     */
-    protected function mutateProperty($key)
-    {
-        if (array_key_exists($key, $this->mutatedProperties)) {
-            return;
-        }
-
-        $value = array_key_exists($key, $this->properties)
-            ? $this->properties[$key]
-            : null;
-        $this->mutatedProperties[$key] = true; // Prevents repeated checks
-
-        $mutator = Str::camel('mutate_' . $key) . 'Property';
-        if (method_exists($this, $mutator)) {
-            $this->properties[$key] = $this->$mutator($value);
-        }
-    }
-
     /**
      * Check whether an offset exists
      *
@@ -140,10 +92,6 @@ protected function mutateProperty($key)
      */
     public function offsetExists($offset): bool
     {
-        if ($this->accessorsAndMutatorsEnabled) {
-            $this->mutateProperty($offset);
-        }
-
         return isset($this->properties[$offset]);
     }
 
@@ -179,7 +127,6 @@ public function offsetSet($offset, $value): void
     public function offsetUnset($offset): void
     {
         unset($this->properties[$offset]);
-        unset($this->mutatedProperties[$offset]);
     }
 
     /**
diff --git a/tests/PropertiesTest.php b/tests/PropertiesTest.php
index 73b0d04..4c044cf 100644
--- a/tests/PropertiesTest.php
+++ b/tests/PropertiesTest.php
@@ -96,21 +96,6 @@ public function testUnsetForPropertyAccess()
         $subject->foo;
     }
 
-    public function testGetMutatorGetsCalled()
-    {
-        $subject = new TestClassUsingThePropertiesTrait();
-
-        $this->assertSame('foobar', $subject->foobar);
-    }
-
-    public function testSetMutatorGetsCalled()
-    {
-        $subject = new TestClassUsingThePropertiesTrait();
-        $subject->special = 'foobar';
-
-        $this->assertSame('FOOBAR', $subject->special);
-    }
-
     public function testGetPropertiesReturnsEmptyArrayIfUnset()
     {
         $this->markTestSkipped('Properties::getProperties() not yet implemented');
diff --git a/tests/TestClassUsingThePropertiesTrait.php b/tests/TestClassUsingThePropertiesTrait.php
index 4b4236e..7d5a41e 100644
--- a/tests/TestClassUsingThePropertiesTrait.php
+++ b/tests/TestClassUsingThePropertiesTrait.php
@@ -7,19 +7,4 @@
 class TestClassUsingThePropertiesTrait implements \ArrayAccess
 {
     use Properties;
-
-    public function __construct()
-    {
-        $this->accessorsAndMutatorsEnabled = true;
-    }
-
-    public function mutateFoobarProperty()
-    {
-        return 'foobar';
-    }
-
-    public function mutateSpecialProperty($value)
-    {
-        return strtoupper($value);
-    }
 }