diff --git a/CHANGELOG b/CHANGELOG
index ef0ea4c06..79bbd2810 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,6 @@
 # 2.14.12 (2022-XX-XX)
 
- * n/a
+ * Fix custom escapers when using multiple Twig environments
 
 # 2.14.11 (2022-02-04)
 
diff --git a/src/Extension/EscaperExtension.php b/src/Extension/EscaperExtension.php
index eebdc3a4e..19dfd7d10 100644
--- a/src/Extension/EscaperExtension.php
+++ b/src/Extension/EscaperExtension.php
@@ -392,20 +392,18 @@ function twig_escape_filter(Environment $env, $string, $strategy = 'html', $char
             return rawurlencode($string);
 
         default:
-            static $escapers;
-
-            if (null === $escapers) {
-                // merge the ones set on CoreExtension for BC (to be removed in 3.0)
-                $escapers = array_merge(
-                    $env->getExtension(CoreExtension::class)->getEscapers(false),
-                    $env->getExtension(EscaperExtension::class)->getEscapers()
-                );
+            // check the ones set on CoreExtension for BC (to be removed in 3.0)
+            $legacyEscapers = $env->getExtension(CoreExtension::class)->getEscapers(false);
+            if (array_key_exists($strategy, $legacyEscapers)) {
+                return $legacyEscapers[$strategy]($env, $string, $charset);
             }
 
-            if (isset($escapers[$strategy])) {
+            $escapers = $env->getExtension(EscaperExtension::class)->getEscapers();
+            if (array_key_exists($strategy, $escapers)) {
                 return $escapers[$strategy]($env, $string, $charset);
             }
 
+            $escapers = array_merge($legacyEscapers, $escapers);
             $validStrategies = implode(', ', array_merge(['html', 'js', 'url', 'css', 'html_attr'], array_keys($escapers)));
 
             throw new RuntimeError(sprintf('Invalid escaping strategy "%s" (valid ones: %s).', $strategy, $validStrategies));
diff --git a/tests/Extension/EscaperTest.php b/tests/Extension/EscaperTest.php
index cf62dd1e2..9804feaa5 100644
--- a/tests/Extension/EscaperTest.php
+++ b/tests/Extension/EscaperTest.php
@@ -355,6 +355,13 @@ class Twig_Tests_Extension_EscaperTest extends TestCase
         }
     }
 
+    public function testUnknownCustomEscaper()
+    {
+        $this->expectException(RuntimeError::class);
+
+        twig_escape_filter(new Environment($this->createMock(LoaderInterface::class)), 'foo', 'bar');
+    }
+
     /**
      * @dataProvider provideCustomEscaperCases
      */
@@ -375,11 +382,15 @@ class Twig_Tests_Extension_EscaperTest extends TestCase
         ];
     }
 
-    public function testUnknownCustomEscaper()
+    public function testCustomEscapersOnMultipleEnvs()
     {
-        $this->expectException(RuntimeError::class);
+        $env1 = new Environment($this->createMock(LoaderInterface::class));
+        $env1->getExtension(EscaperExtension::class)->setEscaper('foo', 'Twig\Tests\foo_escaper_for_test');
+        $env2 = new Environment($this->createMock(LoaderInterface::class));
+        $env2->getExtension(EscaperExtension::class)->setEscaper('foo', 'Twig\Tests\foo_escaper_for_test1');
 
-        twig_escape_filter(new Environment($this->createMock(LoaderInterface::class)), 'foo', 'bar');
+        $this->assertSame('fooUTF-8', twig_escape_filter($env1, 'foo', 'foo'));
+        $this->assertSame('fooUTF-81', twig_escape_filter($env2, 'foo', 'foo'));
     }
 
     /**
@@ -410,6 +421,11 @@ function foo_escaper_for_test(Environment $twig, $string, $charset)
     return $string.$charset;
 }
 
+function foo_escaper_for_test1(Environment $twig, $string, $charset)
+{
+    return $string.$charset.'1';
+}
+
 interface Extension_SafeHtmlInterface
 {
 }