diff --git a/app/composer.json b/app/composer.json
index fe9de1b..6407d99 100644
--- a/app/composer.json
+++ b/app/composer.json
@@ -25,6 +25,7 @@
         "symfony/webpack-encore-bundle": "^1.11",
         "symfony/yaml": "5.2.*",
         "twig/extra-bundle": "^2.12|^3.0",
+        "twig/intl-extra": "^3.3",
         "twig/twig": "^2.12|^3.0"
     },
     "config": {
diff --git a/app/composer.lock b/app/composer.lock
index 402259f..5b874a6 100644
--- a/app/composer.lock
+++ b/app/composer.lock
@@ -5942,6 +5942,75 @@
             ],
             "time": "2021-02-06T21:13:17+00:00"
         },
+        {
+            "name": "twig/intl-extra",
+            "version": "v3.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/twigphp/intl-extra.git",
+                "reference": "919e8f945c30bd3efeb6a4d79722cda538116658"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/twigphp/intl-extra/zipball/919e8f945c30bd3efeb6a4d79722cda538116658",
+                "reference": "919e8f945c30bd3efeb6a4d79722cda538116658",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1.3",
+                "symfony/intl": "^4.3|^5.0",
+                "twig/twig": "^2.4|^3.0"
+            },
+            "require-dev": {
+                "symfony/phpunit-bridge": "^4.4.9|^5.0.9"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.2-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Twig\\Extra\\Intl\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com",
+                    "homepage": "http://fabien.potencier.org",
+                    "role": "Lead Developer"
+                }
+            ],
+            "description": "A Twig extension for Intl",
+            "homepage": "https://twig.symfony.com",
+            "keywords": [
+                "intl",
+                "twig"
+            ],
+            "support": {
+                "source": "https://github.com/twigphp/intl-extra/tree/v3.3.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/twig/twig",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-01T14:58:18+00:00"
+        },
         {
             "name": "twig/twig",
             "version": "v3.3.0",
diff --git a/app/src/Form/BeerType.php b/app/src/Form/BeerType.php
index b6b8d5b..447dbe2 100644
--- a/app/src/Form/BeerType.php
+++ b/app/src/Form/BeerType.php
@@ -4,6 +4,8 @@ namespace App\Form;
 
 use App\Entity\Beer;
 use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\PercentType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
@@ -12,8 +14,11 @@ class BeerType extends AbstractType
     public function buildForm(FormBuilderInterface $builder, array $options)
     {
         $builder
-            ->add('name')
-            ->add('alcool')
+            ->add('name', TextType::class)
+            ->add('alcool', PercentType::class, [
+                'scale' => 1,
+                'type' => 'fractional',
+            ])
         ;
     }
 
diff --git a/app/symfony.lock b/app/symfony.lock
index bd86f8e..7fc80d3 100644
--- a/app/symfony.lock
+++ b/app/symfony.lock
@@ -385,6 +385,9 @@
     "twig/extra-bundle": {
         "version": "v3.3.0"
     },
+    "twig/intl-extra": {
+        "version": "v3.3.0"
+    },
     "twig/twig": {
         "version": "v3.3.0"
     }
diff --git a/app/templates/beer/index.html.twig b/app/templates/beer/index.html.twig
index af0fc7b..e94cab7 100644
--- a/app/templates/beer/index.html.twig
+++ b/app/templates/beer/index.html.twig
@@ -22,7 +22,7 @@
             <tr>
                 <th scope="row">{{ beer.id }}</th>
                 <td>{{ beer.name }}</td>
-                <td>{{ beer.alcool }}</td>
+                <td>{{ beer.alcool|format_percent_number({rounding_mode: 'floor', fraction_digit: 1}) }}</td>
                 <td>
                     <a href="{{ path('beer_show', {'id': beer.id}) }}" class="btn btn-secondary" role="button" title="{{'show'}}">
                        <i class="fa fa-eye fa-fw"></i>
diff --git a/app/templates/beer/show.html.twig b/app/templates/beer/show.html.twig
index 51b0593..fd315fd 100644
--- a/app/templates/beer/show.html.twig
+++ b/app/templates/beer/show.html.twig
@@ -19,7 +19,7 @@
             </tr>
             <tr>
                 <th scope="row">{{'Alcool'}}</th>
-                <td>{{ beer.alcool }}</td>
+                <td>{{ beer.alcool|format_percent_number({rounding_mode: 'floor', fraction_digit: 1}) }}</td>
             </tr>
         </tbody>
     </table>