diff --git a/core/lib/Drupal/Core/Cache/CacheFactory.php b/core/lib/Drupal/Core/Cache/CacheFactory.php
index 8547ac4..de8a2c7 100644
--- a/core/lib/Drupal/Core/Cache/CacheFactory.php
+++ b/core/lib/Drupal/Core/Cache/CacheFactory.php
@@ -67,12 +67,12 @@ public function get($bin) {
     if (isset($cache_settings['bins'][$bin])) {
       $service_name = $cache_settings['bins'][$bin];
     }
-    elseif (isset($cache_settings['default'])) {
-      $service_name = $cache_settings['default'];
-    }
     elseif (isset($this->defaultBinBackends[$bin])) {
       $service_name = $this->defaultBinBackends[$bin];
     }
+    elseif (isset($cache_settings['default'])) {
+      $service_name = $cache_settings['default'];
+    }
     else {
       $service_name = 'cache.backend.database';
     }
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
index 3834dae..39b82be 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityStorage.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Core\Config\Entity;
 
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\ConfigImporterException;
@@ -104,9 +105,12 @@ class ConfigEntityStorage extends EntityStorageBase implements ConfigEntityStora
    *   The UUID service.
    * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
    *   The language manager.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $static_cache_backend
+   *   The static cache backend.
    */
-  public function __construct(EntityTypeInterface $entity_type, ConfigFactoryInterface $config_factory, UuidInterface $uuid_service, LanguageManagerInterface $language_manager) {
-    parent::__construct($entity_type);
+  public function __construct(EntityTypeInterface $entity_type, ConfigFactoryInterface $config_factory, UuidInterface $uuid_service, LanguageManagerInterface $language_manager, CacheBackendInterface $static_cache_backend = NULL) {
+    $static_cache_backend = isset($static_cache_backend) ? $static_cache_backemd : \Drupal::service('cache.static');
+    parent::__construct($entity_type, $static_cache_backend);
 
     $this->configFactory = $config_factory;
     $this->uuidService = $uuid_service;
@@ -317,43 +321,10 @@ protected function has($id, EntityInterface $entity) {
   }
 
   /**
-   * Gets entities from the static cache.
-   *
-   * @param array $ids
-   *   If not empty, return entities that match these IDs.
-   *
-   * @return \Drupal\Core\Entity\EntityInterface[]
-   *   Array of entities from the entity cache.
-   */
-  protected function getFromStaticCache(array $ids) {
-    $entities = array();
-    // Load any available entities from the internal cache.
-    if ($this->entityType->isStaticallyCacheable() && !empty($this->entities)) {
-      $config_overrides_key = $this->overrideFree ? '' : implode(':', $this->configFactory->getCacheKeys());
-      foreach ($ids as $id) {
-        if (!empty($this->entities[$id])) {
-          if (isset($this->entities[$id][$config_overrides_key])) {
-            $entities[$id] = $this->entities[$id][$config_overrides_key];
-          }
-        }
-      }
-    }
-    return $entities;
-  }
-
-  /**
-   * Stores entities in the static entity cache.
-   *
-   * @param \Drupal\Core\Entity\EntityInterface[] $entities
-   *   Entities to store in the cache.
-   */
-  protected function setStaticCache(array $entities) {
-    if ($this->entityType->isStaticallyCacheable()) {
-      $config_overrides_key = $this->overrideFree ? '' : implode(':', $this->configFactory->getCacheKeys());
-      foreach ($entities as $id => $entity) {
-        $this->entities[$id][$config_overrides_key] = $entity;
-      }
-    }
+   * {@inheritdoc}
+   */
+  protected function getCacheId($id) {
+    return parent::getCacheId($id) . ':' .  $config_overrides_key = $this->overrideFree ? '' : implode(':', $this->configFactory->getCacheKeys());
   }
 
   /**
diff --git a/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php b/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php
index dea8865..7efdaa6 100644
--- a/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php
@@ -622,17 +622,17 @@ protected function setPersistentCache($entities) {
    */
   public function resetCache(array $ids = NULL) {
     if ($ids) {
-      $cids = array();
-      foreach ($ids as $id) {
-        unset($this->entities[$id]);
-        $cids[] = $this->buildCacheId($id);
-      }
+      parent::resetCache($ids);
       if ($this->entityType->isPersistentlyCacheable()) {
+        $cids = array();
+        foreach ($ids as $id) {
+          $cids[] = $this->buildCacheId($id);
+        }
         $this->cacheBackend->deleteMultiple($cids);
       }
     }
     else {
-      $this->entities = array();
+      parent::resetCache();
       if ($this->entityType->isPersistentlyCacheable()) {
         Cache::invalidateTags(array($this->entityTypeId . '_values'));
       }
diff --git a/core/lib/Drupal/Core/Entity/EntityStorageBase.php b/core/lib/Drupal/Core/Entity/EntityStorageBase.php
index f583121..3b78371 100644
--- a/core/lib/Drupal/Core/Entity/EntityStorageBase.php
+++ b/core/lib/Drupal/Core/Entity/EntityStorageBase.php
@@ -3,6 +3,8 @@
 namespace Drupal\Core\Entity;
 
 use Drupal\Core\Entity\Query\QueryInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Cache\Cache;
 
 /**
  * A base entity storage class.
@@ -73,18 +75,28 @@
   protected $entityClass;
 
   /**
+   * The static cache backend.
+   *
+   * @var \Drupal\Core\Cache\CacheBackendInterface
+   */
+  protected $staticCacheBackend;
+
+  /**
    * Constructs an EntityStorageBase instance.
    *
    * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
    *   The entity type definition.
+   * @param \Drupal\Core\Cache\CacheBackendInterface
+   *   The static cache backend.
    */
-  public function __construct(EntityTypeInterface $entity_type) {
+  public function __construct(EntityTypeInterface $entity_type, CacheBackendInterface $static_cache_backend = NULL) {
     $this->entityTypeId = $entity_type->id();
     $this->entityType = $entity_type;
     $this->idKey = $this->entityType->getKey('id');
     $this->uuidKey = $this->entityType->getKey('uuid');
     $this->langcodeKey = $this->entityType->getKey('langcode');
     $this->entityClass = $this->entityType->getClass();
+    $this->staticCacheBackend = isset($static_cache_backend) ? $static_cache_backend : \Drupal::service('cache.static');
   }
 
   /**
@@ -102,6 +114,13 @@ public function getEntityType() {
   }
 
   /**
+   * Build a cache ID for an entity.
+   */
+  protected function getCacheId($id) {
+    return 'entity_storage_cache:' . $this->entityTypeId . ':' . $id;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function loadUnchanged($id) {
@@ -115,11 +134,12 @@ public function loadUnchanged($id) {
   public function resetCache(array $ids = NULL) {
     if ($this->entityType->isStaticallyCacheable() && isset($ids)) {
       foreach ($ids as $id) {
-        unset($this->entities[$id]);
+        $this->staticCacheBackend->delete($this->getCacheId($id));
       }
     }
     else {
-      $this->entities = array();
+      // Call the backend method directly.
+      $this->staticCacheBackend->invalidateTags(['entity_static_cache']);
     }
   }
 
@@ -135,8 +155,12 @@ public function resetCache(array $ids = NULL) {
   protected function getFromStaticCache(array $ids) {
     $entities = array();
     // Load any available entities from the internal cache.
-    if ($this->entityType->isStaticallyCacheable() && !empty($this->entities)) {
-      $entities += array_intersect_key($this->entities, array_flip($ids));
+    if ($this->entityType->isStaticallyCacheable()) {
+      foreach ($ids as $id) {
+        if ($cached = $this->staticCacheBackend->get($this->getCacheId($id))) {
+          $entities[$id] = $cached->data;
+        }
+      }
     }
     return $entities;
   }
@@ -149,7 +173,9 @@ protected function getFromStaticCache(array $ids) {
    */
   protected function setStaticCache(array $entities) {
     if ($this->entityType->isStaticallyCacheable()) {
-      $this->entities += $entities;
+      foreach ($entities as $id => $entity) {
+        $this->staticCacheBackend->set($this->getCacheId($entity->id()), $entity, CacheBackendInterface::CACHE_PERMANENT, ['entity_static_cache']);
+      }
     }
   }
 
@@ -530,4 +556,8 @@ public function getAggregateQuery($conjunction = 'AND') {
    */
   abstract protected function getQueryServiceName();
 
+  public function __destruct() {
+    $this->staticCacheBackend->invalidateTags(['entity_static_cache']);
+  }
+
 }
diff --git a/core/lib/Drupal/Core/Entity/KeyValueStore/KeyValueEntityStorage.php b/core/lib/Drupal/Core/Entity/KeyValueStore/KeyValueEntityStorage.php
index 478bca7..84babd8 100644
--- a/core/lib/Drupal/Core/Entity/KeyValueStore/KeyValueEntityStorage.php
+++ b/core/lib/Drupal/Core/Entity/KeyValueStore/KeyValueEntityStorage.php
@@ -3,6 +3,7 @@
 namespace Drupal\Core\Entity\KeyValueStore;
 
 use Drupal\Component\Uuid\UuidInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Config\Entity\Exception\ConfigEntityIdLengthException;
 use Drupal\Core\Entity\FieldableEntityInterface;
 use Drupal\Core\Entity\EntityInterface;
@@ -50,6 +51,13 @@ class KeyValueEntityStorage extends EntityStorageBase {
   protected $languageManager;
 
   /**
+   * The memory cache backend.
+   *
+   * @var \Drupal\Core\Cache\CacheBackendInterface
+   */
+  protected $staticCacheBackend;
+
+  /**
    * Constructs a new KeyValueEntityStorage.
    *
    * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
@@ -60,9 +68,11 @@ class KeyValueEntityStorage extends EntityStorageBase {
    *   The UUID service.
    * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
    *   The language manager.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $static_cache_backend
+   *   The static cache backend.
    */
-  public function __construct(EntityTypeInterface $entity_type, KeyValueStoreInterface $key_value_store, UuidInterface $uuid_service, LanguageManagerInterface $language_manager) {
-    parent::__construct($entity_type);
+  public function __construct(EntityTypeInterface $entity_type, KeyValueStoreInterface $key_value_store, UuidInterface $uuid_service, LanguageManagerInterface $language_manager, CacheBackendInterface $static_cache_backend) {
+    parent::__construct($entity_type, $static_cache_backend);
     $this->keyValueStore = $key_value_store;
     $this->uuidService = $uuid_service;
     $this->languageManager = $language_manager;
diff --git a/core/modules/migrate/src/MigrationStorage.php b/core/modules/migrate/src/MigrationStorage.php
index 282b0c9..ae3ae88 100644
--- a/core/modules/migrate/src/MigrationStorage.php
+++ b/core/modules/migrate/src/MigrationStorage.php
@@ -4,6 +4,7 @@
 
 use Drupal\Component\Graph\Graph;
 use Drupal\Component\Uuid\UuidInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\Entity\ConfigEntityStorage;
 use Drupal\Core\Entity\EntityTypeInterface;
@@ -36,9 +37,12 @@ class MigrationStorage extends ConfigEntityStorage implements MigrateBuildDepend
    *   The language manager.
    * @param \Drupal\Core\Entity\Query\QueryFactoryInterface $query_factory
    *   The entity query factory service.
+   * @param \Drupal\Core\Cache\CacheBackendInterface
+   *   The static cache backend.
    */
-  public function __construct(EntityTypeInterface $entity_type, ConfigFactoryInterface $config_factory, UuidInterface $uuid_service, LanguageManagerInterface $language_manager, QueryFactoryInterface $query_factory) {
-    parent::__construct($entity_type, $config_factory, $uuid_service, $language_manager);
+  public function __construct(EntityTypeInterface $entity_type, ConfigFactoryInterface $config_factory, UuidInterface $uuid_service, LanguageManagerInterface $language_manager, QueryFactoryInterface $query_factory, CacheBackendInterface $static_cache_backend = NULL) {
+    $static_cache_backend = isset($static_cache_backend) ? $static_cache_backend : \Drupal::service('cache.static');
+    parent::__construct($entity_type, $config_factory, $uuid_service, $language_manager, $static_cache_backend);
     $this->queryFactory = $query_factory;
   }
 
diff --git a/core/modules/migrate/tests/src/Unit/MigrationStorageTest.php b/core/modules/migrate/tests/src/Unit/MigrationStorageTest.php
index 3ff44fa..8ce528f 100644
--- a/core/modules/migrate/tests/src/Unit/MigrationStorageTest.php
+++ b/core/modules/migrate/tests/src/Unit/MigrationStorageTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\Tests\migrate\Unit;
 
 use Drupal\Component\Uuid\UuidInterface;
+use Drupal\Core\Cache\MemoryBackend;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Entity\Query\QueryFactoryInterface;
@@ -53,7 +54,8 @@ protected function setUp() {
       $this->getMock(ConfigFactoryInterface::class),
       $this->getMock(UuidInterface::class),
       $this->getMock(LanguageManagerInterface::class),
-      $query_factory
+      $query_factory,
+      new MemoryBackend('static')
     );
   }
 
diff --git a/core/tests/Drupal/Tests/Core/Entity/KeyValueStore/KeyValueEntityStorageTest.php b/core/tests/Drupal/Tests/Core/Entity/KeyValueStore/KeyValueEntityStorageTest.php
index 3c337bb..5a07d7f 100644
--- a/core/tests/Drupal/Tests/Core/Entity/KeyValueStore/KeyValueEntityStorageTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/KeyValueStore/KeyValueEntityStorageTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\Core\Entity\KeyValueStore {
 
+use Drupal\Core\Cache\MemoryBackend;
 use Drupal\Core\Config\Entity\ConfigEntityInterface;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Entity\EntityInterface;
@@ -120,7 +121,7 @@ protected function setUpKeyValueEntityStorage($uuid_key = 'uuid') {
       ->method('getCurrentLanguage')
       ->will($this->returnValue($language));
 
-    $this->entityStorage = new KeyValueEntityStorage($this->entityType, $this->keyValueStore, $this->uuidService, $this->languageManager);
+    $this->entityStorage = new KeyValueEntityStorage($this->entityType, $this->keyValueStore, $this->uuidService, $this->languageManager, new MemoryBackend('static'));
     $this->entityStorage->setModuleHandler($this->moduleHandler);
 
     $container = new ContainerBuilder();