diff --git a/app/main/forms.py b/app/main/forms.py
index e76955779..f6f7412a2 100644
--- a/app/main/forms.py
+++ b/app/main/forms.py
@@ -2445,10 +2445,14 @@ class TemplateAndFoldersSelectionForm(Form):
 
 
 class ClearCacheForm(StripWhitespaceForm):
-    model_type = GovukRadiosField(
+    model_type = GovukCheckboxesField(
         'What do you want to clear today',
     )
 
+    def validate_model_type(self, field):
+        if not field.data:
+            raise ValidationError('Select at least one option')
+
 
 class GoLiveNotesForm(StripWhitespaceForm):
     request_to_go_live_notes = TextAreaField(
diff --git a/app/main/views/platform_admin.py b/app/main/views/platform_admin.py
index 1cfbeab97..10e43fb4b 100644
--- a/app/main/views/platform_admin.py
+++ b/app/main/views/platform_admin.py
@@ -420,18 +420,27 @@ def clear_cache():
     ])
 
     form = ClearCacheForm()
-    form.model_type.choices = [(key, key.replace('_', ' ').title()) for key in CACHE_KEYS]
+
+    form.model_type.choices = [
+        (key, key.replace('_', ' ').title()) for key in CACHE_KEYS
+    ]
 
     if form.validate_on_submit():
-        group_key = form.model_type.data
-        group = CACHE_KEYS[group_key]
+        group_keys = form.model_type.data
+        groups = map(CACHE_KEYS.get, group_keys)
+        patterns = list(itertools.chain(*groups))
 
         num_deleted = sum(
             redis_client.delete_cache_keys_by_pattern(pattern)
-            for pattern in group
+            for pattern in patterns
+        )
+
+        msg = (
+            f'Removed {num_deleted} objects '
+            f'across {len(patterns)} key formats '
+            f'for {", ".join(group_keys)}'
         )
 
-        msg = f'Removed {num_deleted} {group_key} objects across {len(group)} key formats'
         flash(msg, category='default')
 
     return render_template(
diff --git a/tests/app/main/views/test_platform_admin.py b/tests/app/main/views/test_platform_admin.py
index e965e7667..fb4cba007 100644
--- a/tests/app/main/views/test_platform_admin.py
+++ b/tests/app/main/views/test_platform_admin.py
@@ -735,7 +735,7 @@ def test_clear_cache_shows_form(
     page = client_request.get('main.clear_cache')
 
     assert not redis.delete_cache_keys_by_pattern.called
-    radios = {el['value'] for el in page.select('input[type=radio]')}
+    radios = {el['value'] for el in page.select('input[type=checkbox]')}
 
     assert radios == {
         'user',
@@ -753,8 +753,8 @@ def test_clear_cache_shows_form(
         call('service-????????-????-????-????-????????????-templates'),
         call('service-????????-????-????-????-????????????-template-????????-????-????-????-????????????-version-*'),
         call('service-????????-????-????-????-????????????-template-????????-????-????-????-????????????-versions'),
-    ], 'Removed 6 template objects across 3 key formats'),
-    ('service', [
+    ], 'Removed 6 objects across 3 key formats for template'),
+    (['service', 'organisation'], [
         call('has_jobs-????????-????-????-????-????????????'),
         call('service-????????-????-????-????-????????????'),
         call('service-????????-????-????-????-????????????-templates'),
@@ -762,16 +762,14 @@ def test_clear_cache_shows_form(
         call('service-????????-????-????-????-????????????-template-folders'),
         call('service-????????-????-????-????-????????????-returned-letters-statistics'),
         call('service-????????-????-????-????-????????????-returned-letters-summary'),
-    ], 'Removed 14 service objects across 7 key formats'),
-    ('organisation', [
         call('organisations'),
         call('domains'),
         call('live-service-and-organisation-counts'),
         call('organisation-????????-????-????-????-????????????-name'),
-    ], 'Removed 8 organisation objects across 4 key formats'),
+    ], 'Removed 22 objects across 11 key formats for service, organisation'),
     ('broadcast', [
         call('service-????????-????-????-????-????????????-broadcast-message-????????-????-????-????-????????????'),
-    ], 'Removed 2 broadcast objects across 1 key formats'),
+    ], 'Removed 2 objects across 1 key formats for broadcast'),
 ))
 def test_clear_cache_submits_and_tells_you_how_many_things_were_deleted(
     client_request,
@@ -807,7 +805,7 @@ def test_clear_cache_requires_option(
 
     page = client_request.post('main.clear_cache', _data={}, _expected_status=200)
 
-    assert normalize_spaces(page.find('span', class_='govuk-error-message').text) == 'Error: Select an option'
+    assert normalize_spaces(page.find('span', class_='govuk-error-message').text) == 'Error: Select at least one option'
     assert not redis.delete_cache_keys_by_pattern.called