diff --git a/java/google/registry/model/ofy/Ofy.java b/java/google/registry/model/ofy/Ofy.java
index 58db06072..ebe35513a 100644
--- a/java/google/registry/model/ofy/Ofy.java
+++ b/java/google/registry/model/ofy/Ofy.java
@@ -140,8 +140,7 @@ public class Ofy {
    * worth the extra complexity of reasoning about caching.
    */
   public Loader load() {
-    // TODO(b/27424173): change to false when memcache audit changes are implemented.
-    return ofy().cache(true).load();
+    return ofy().cache(false).load();
   }
 
   /**
@@ -154,7 +153,8 @@ public class Ofy {
    * worth the extra complexity of reasoning about caching.
    */
   public Loader loadWithMemcache() {
-    return ofy().cache(true).load();
+    // TODO(b/27424173): Remove this method if we determine we are ok with no memcache.
+    return ofy().cache(false).load();
   }
 
   /**
diff --git a/javatests/google/registry/flows/domain/DomainApplicationCreateFlowTest.java b/javatests/google/registry/flows/domain/DomainApplicationCreateFlowTest.java
index ca01e75b4..d804cafc3 100644
--- a/javatests/google/registry/flows/domain/DomainApplicationCreateFlowTest.java
+++ b/javatests/google/registry/flows/domain/DomainApplicationCreateFlowTest.java
@@ -33,7 +33,6 @@ import static google.registry.testing.DatastoreHelper.persistReservedList;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.DomainApplicationSubject.assertAboutApplications;
 import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 import static google.registry.util.DateTimeUtils.END_OF_TIME;
 import static google.registry.util.DateTimeUtils.START_OF_TIME;
 import static org.joda.money.CurrencyUnit.EUR;
@@ -108,7 +107,6 @@ import google.registry.flows.domain.DomainFlowUtils.UnsupportedFeeAttributeExcep
 import google.registry.flows.domain.DomainFlowUtils.UnsupportedMarkTypeException;
 import google.registry.flows.exceptions.ResourceAlreadyExistsException;
 import google.registry.model.domain.DomainApplication;
-import google.registry.model.domain.DomainResource;
 import google.registry.model.domain.GracePeriod;
 import google.registry.model.domain.LrpTokenEntity;
 import google.registry.model.domain.launch.ApplicationStatus;
@@ -116,8 +114,6 @@ import google.registry.model.domain.launch.LaunchNotice;
 import google.registry.model.domain.launch.LaunchPhase;
 import google.registry.model.domain.rgp.GracePeriodStatus;
 import google.registry.model.domain.secdns.DelegationSignerData;
-import google.registry.model.index.ForeignKeyIndex;
-import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.model.registrar.Registrar;
 import google.registry.model.registry.Registry;
 import google.registry.model.registry.Registry.TldState;
@@ -1547,30 +1543,6 @@ public class DomainApplicationCreateFlowTest
     }
   }
 
-  @Test
-  public void testFailfast_withMemcachedDomainAndFki_hitsMemcache() throws Exception {
-    persistContactsAndHosts();
-    clock.advanceOneMilli();
-    DomainResource domain = persistActiveDomain(getUniqueIdFromCommand());
-    setMemcacheContents(Key.create(domain), ForeignKeyIndex.createKey(domain));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    try {
-      runFlow();
-      assert_().fail("Expected to throw ResourceAlreadyExistsException");
-    } catch (ResourceAlreadyExistsException e) {
-      assertThat(e.isFailfast()).isTrue();
-    }
-    // Everything should have been loaded from memcache so nothing should hit datastore.
-    int numReadsInFlow =
-        RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    // TODO(b/27424173): This is 1 because there is no @Cache annotation on DomainBase, and we
-    // don't want to blindly add it because that's a production change that adds potentially
-    // dangerous caching. When the recommendations from the audit in b/27424173 are done and we've
-    // tested the new safer caching this should be set to 0.
-    assertThat(numReadsInFlow).isEqualTo(1);
-  }
-
-
   @Test
   public void testFailure_registrantNotWhitelisted() throws Exception {
     persistActiveContact("someone");
diff --git a/javatests/google/registry/flows/domain/DomainApplicationInfoFlowTest.java b/javatests/google/registry/flows/domain/DomainApplicationInfoFlowTest.java
index f4b6ea8f3..ca41a6ba7 100644
--- a/javatests/google/registry/flows/domain/DomainApplicationInfoFlowTest.java
+++ b/javatests/google/registry/flows/domain/DomainApplicationInfoFlowTest.java
@@ -24,7 +24,6 @@ import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistActiveHost;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.MemcacheHelper.clearMemcache;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 import static google.registry.testing.TestDataHelper.loadFileWithSubstitutions;
 import static google.registry.util.DatastoreServiceUtils.KEY_TO_KIND_FUNCTION;
 
@@ -53,7 +52,6 @@ import google.registry.model.domain.secdns.DelegationSignerData;
 import google.registry.model.eppcommon.AuthInfo.PasswordAuth;
 import google.registry.model.eppcommon.StatusValue;
 import google.registry.model.host.HostResource;
-import google.registry.model.index.DomainApplicationIndex;
 import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.model.registry.Registry.TldState;
 import google.registry.model.smd.EncodedSignedMark;
@@ -330,28 +328,6 @@ public class DomainApplicationInfoFlowTest
     runFlow();
   }
 
-  @Test
-  public void testLoadsComeFromMemcache() throws Exception {
-    persistTestEntities(HostsState.HOSTS_EXIST, MarksState.NO_MARKS_EXIST);
-    setMemcacheContents(
-        Key.create(application),
-        DomainApplicationIndex.createKey(application),
-        Key.create(registrant),
-        Key.create(contact),
-        Key.create(host1),
-        Key.create(host2));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    doSuccessfulTest("domain_info_sunrise_response.xml", HostsState.HOSTS_EXIST);
-
-    // Everything should be in memcache so nothing should hit datastore.
-    int numReadsInFlow = RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    // TODO(b/27424173): This is 1 because there is no @Cache annotation on DomainBase, and we
-    // don't want to blindly add it because that's a production change that adds potentially
-    // dangerous caching. When the recommendations from the audit in b/27424173 are done and we've
-    // tested the new safer caching this should be set to 0.
-    assertThat(numReadsInFlow).isEqualTo(1);
-  }
-
   /** Test that we load contacts and hosts as a batch rather than individually. */
   @Test
   public void testBatchLoadingOfReferences() throws Exception {
diff --git a/javatests/google/registry/flows/domain/DomainCreateFlowTest.java b/javatests/google/registry/flows/domain/DomainCreateFlowTest.java
index 8af36899f..01d0f924d 100644
--- a/javatests/google/registry/flows/domain/DomainCreateFlowTest.java
+++ b/javatests/google/registry/flows/domain/DomainCreateFlowTest.java
@@ -41,7 +41,6 @@ import static google.registry.testing.DatastoreHelper.persistReservedList;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.DomainResourceSubject.assertAboutDomains;
 import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 import static google.registry.testing.TaskQueueHelper.assertDnsTasksEnqueued;
 import static google.registry.testing.TaskQueueHelper.assertNoDnsTasksEnqueued;
 import static google.registry.testing.TaskQueueHelper.assertNoTasksEnqueued;
@@ -58,7 +57,6 @@ import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedMap;
-import com.googlecode.objectify.Key;
 import google.registry.flows.EppException.UnimplementedExtensionException;
 import google.registry.flows.EppRequestSource;
 import google.registry.flows.ExtensionManager.UndeclaredServiceExtensionException;
@@ -124,8 +122,6 @@ import google.registry.model.domain.launch.LaunchNotice;
 import google.registry.model.domain.rgp.GracePeriodStatus;
 import google.registry.model.domain.secdns.DelegationSignerData;
 import google.registry.model.eppcommon.StatusValue;
-import google.registry.model.index.ForeignKeyIndex;
-import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.model.poll.PollMessage;
 import google.registry.model.registrar.Registrar;
 import google.registry.model.registry.Registry;
@@ -912,28 +908,6 @@ public class DomainCreateFlowTest extends ResourceFlowTestCase<DomainCreateFlow,
     }
   }
 
-  @Test
-  public void testFailfast_withMemcachedDomainAndFki_hitsMemcache() throws Exception {
-    persistContactsAndHosts();
-    DomainResource domain = persistActiveDomain(getUniqueIdFromCommand());
-    setMemcacheContents(Key.create(domain), ForeignKeyIndex.createKey(domain));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    try {
-      runFlow();
-      assert_().fail("Expected to throw ResourceAlreadyExistsException");
-    } catch (ResourceAlreadyExistsException e) {
-      assertThat(e.isFailfast()).isTrue();
-    }
-    // Everything should have been loaded from memcache so nothing should hit datastore.
-    int numReadsInFlow =
-        RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    // TODO(b/27424173): This is 1 because there is no @Cache annotation on DomainBase, and we
-    // don't want to blindly add it because that's a production change that adds potentially
-    // dangerous caching. When the recommendations from the audit in b/27424173 are done and we've
-    // tested the new safer caching this should be set to 0.
-    assertThat(numReadsInFlow).isEqualTo(1);
-  }
-
   /**
    * There is special logic that disallows a failfast for domains in add grace period and sunrush
    * add grace period, so make sure that they fail anyways in the actual flow.
diff --git a/javatests/google/registry/flows/domain/DomainInfoFlowTest.java b/javatests/google/registry/flows/domain/DomainInfoFlowTest.java
index 32b0f8c22..d111ad42c 100644
--- a/javatests/google/registry/flows/domain/DomainInfoFlowTest.java
+++ b/javatests/google/registry/flows/domain/DomainInfoFlowTest.java
@@ -25,7 +25,6 @@ import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistActiveHost;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.MemcacheHelper.clearMemcache;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 import static google.registry.testing.TestDataHelper.loadFileWithSubstitutions;
 import static google.registry.util.DatastoreServiceUtils.KEY_TO_KIND_FUNCTION;
 
@@ -56,7 +55,6 @@ import google.registry.model.domain.secdns.DelegationSignerData;
 import google.registry.model.eppcommon.AuthInfo.PasswordAuth;
 import google.registry.model.eppcommon.StatusValue;
 import google.registry.model.host.HostResource;
-import google.registry.model.index.ForeignKeyIndex;
 import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.testing.AppEngineRule;
 import java.util.List;
@@ -635,29 +633,6 @@ public class DomainInfoFlowTest extends ResourceFlowTestCase<DomainInfoFlow, Dom
     runFlow();
   }
 
-  @Test
-  public void testLoadsComeFromMemcache() throws Exception {
-    persistTestEntities(false);
-    setMemcacheContents(
-        Key.create(domain),
-        ForeignKeyIndex.createKey(domain),
-        Key.create(registrant),
-        Key.create(contact),
-        Key.create(host1),
-        Key.create(host2),
-        Key.create(host3));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    runFlowAssertResponse(loadFileWithSubstitutions(
-        getClass(), "domain_info_response.xml", ImmutableMap.of("ROID", "2FF-TLD")));
-    // Everything should be in memcache so nothing should hit datastore.
-    int numReadsInFlow = RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    // TODO(b/27424173): This is 1 because there is no @Cache annotation on DomainBase, and we
-    // don't want to blindly add it because that's a production change that adds potentially
-    // dangerous caching. When the recommendations from the audit in b/27424173 are done and we've
-    // tested the new safer caching this should be set to 0.
-    assertThat(numReadsInFlow).isEqualTo(1);
-  }
-
   /** Test that we load contacts and hosts as a batch rather than individually. */
   @Test
   public void testBatchLoadingOfReferences() throws Exception {
diff --git a/javatests/google/registry/model/registrar/RegistrarTest.java b/javatests/google/registry/model/registrar/RegistrarTest.java
index c0a6460b2..0309b66c5 100644
--- a/javatests/google/registry/model/registrar/RegistrarTest.java
+++ b/javatests/google/registry/model/registrar/RegistrarTest.java
@@ -25,7 +25,6 @@ import static google.registry.testing.DatastoreHelper.createTld;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.DatastoreHelper.persistSimpleResource;
 import static google.registry.testing.DatastoreHelper.persistSimpleResources;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
@@ -35,7 +34,6 @@ import com.googlecode.objectify.Key;
 import com.googlecode.objectify.VoidWork;
 import google.registry.model.EntityTestCase;
 import google.registry.model.common.EntityGroupRoot;
-import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.model.registrar.Registrar.State;
 import google.registry.model.registrar.Registrar.Type;
 import google.registry.testing.ExceptionRule;
@@ -396,13 +394,4 @@ public class RegistrarTest extends EntityTestCase {
     assertThat(Registrar.loadByClientId("registrar")).isNotNull();
     assertThat(ofy().getSessionKeys()).contains(Key.create(registrar));
   }
-
-  @Test
-  public void testLoadByClientId_usesMemcache() {
-    setMemcacheContents(Key.create(registrar));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    Registrar.loadByClientId("registrar");
-    int numReadsInLoad = RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    assertThat(numReadsInLoad).isEqualTo(0);
-  }
 }
diff --git a/javatests/google/registry/model/registry/RegistryTest.java b/javatests/google/registry/model/registry/RegistryTest.java
index 6e670da8c..72279e2f6 100644
--- a/javatests/google/registry/model/registry/RegistryTest.java
+++ b/javatests/google/registry/model/registry/RegistryTest.java
@@ -24,7 +24,6 @@ import static google.registry.testing.DatastoreHelper.createTld;
 import static google.registry.testing.DatastoreHelper.newRegistry;
 import static google.registry.testing.DatastoreHelper.persistPremiumList;
 import static google.registry.testing.DatastoreHelper.persistReservedList;
-import static google.registry.testing.MemcacheHelper.setMemcacheContents;
 import static google.registry.util.DateTimeUtils.END_OF_TIME;
 import static google.registry.util.DateTimeUtils.START_OF_TIME;
 import static org.joda.money.CurrencyUnit.EUR;
@@ -34,7 +33,6 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedMap;
 import com.googlecode.objectify.Key;
 import google.registry.model.EntityTestCase;
-import google.registry.model.ofy.RequestCapturingAsyncDatastoreService;
 import google.registry.model.registry.Registry.RegistryNotFoundException;
 import google.registry.model.registry.Registry.TldState;
 import google.registry.model.registry.label.PremiumList;
@@ -480,18 +478,4 @@ public class RegistryTest extends EntityTestCase {
         .setEapFeeSchedule(ImmutableSortedMap.of(START_OF_TIME, Money.zero(EUR)))
         .build();
   }
-
-  @Test
-  public void testLoadHitsMemcache() {
-    Registry registry = Registry.get("tld");
-    // In unit tests the in-memory cache has a duration of 0, so even without this line we should
-    // expect this to hit memcache. Nevertheless, remove it from the cache explicitly so that if the
-    // unit test caching is ever set to nonzero this won't spuriously pass.
-    registry.invalidateInCache();
-    setMemcacheContents(Key.create(getCrossTldKey(), Registry.class, "tld"));
-    int numPreviousReads = RequestCapturingAsyncDatastoreService.getReads().size();
-    Registry.get("tld");
-    int numReadsForGet = RequestCapturingAsyncDatastoreService.getReads().size() - numPreviousReads;
-    assertThat(numReadsForGet).isEqualTo(0);
-  }
 }