diff --git a/config/settings/base.py b/config/settings/base.py
index 2595b48..29cfd8a 100644
--- a/config/settings/base.py
+++ b/config/settings/base.py
@@ -20,7 +20,7 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 # See https://docs.djangoproject.com/en/5.0/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = 'django-insecure-jqgf*tx%8h!t6o#)tl-7(hsc_gkjdosmko*u@)8+4r-frc27r1'
+SECRET_KEY = "django-insecure-jqgf*tx%8h!t6o#)tl-7(hsc_gkjdosmko*u@)8+4r-frc27r1"
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
@@ -31,54 +31,53 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
-    'django.contrib.admin',
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-
-    'reinheit.apps.brew',
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "reinheit.apps.brew",
 ]
 
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
 ]
 
-ROOT_URLCONF = 'config.urls'
+ROOT_URLCONF = "config.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
             ],
         },
     },
 ]
 
-WSGI_APPLICATION = 'config.wsgi.application'
+WSGI_APPLICATION = "config.wsgi.application"
 
 
 # Database
 # https://docs.djangoproject.com/en/5.0/ref/settings/#databases
 
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": BASE_DIR / "db.sqlite3",
     }
 }
 
@@ -88,16 +87,16 @@ DATABASES = {
 
 AUTH_PASSWORD_VALIDATORS = [
     {
-        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
     },
 ]
 
@@ -105,9 +104,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/5.0/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = "UTC"
 
 USE_I18N = True
 
@@ -117,9 +116,9 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/5.0/howto/static-files/
 
-STATIC_URL = 'static/'
+STATIC_URL = "static/"
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/5.0/ref/settings/#default-auto-field
 
-DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
diff --git a/reinheit/apps/brew/admin.py b/reinheit/apps/brew/admin.py
index 8c38f3f..2e01342 100644
--- a/reinheit/apps/brew/admin.py
+++ b/reinheit/apps/brew/admin.py
@@ -1,3 +1,9 @@
 from django.contrib import admin
 
+from .models import Brew, Addition
+
 # Register your models here.
+
+
+admin.site.register(Brew)
+admin.site.register(Addition)
diff --git a/reinheit/apps/brew/models.py b/reinheit/apps/brew/models.py
index 71a8362..4180783 100644
--- a/reinheit/apps/brew/models.py
+++ b/reinheit/apps/brew/models.py
@@ -1,3 +1,26 @@
 from django.db import models
 
 # Create your models here.
+
+
+class Brew(models.Model):
+
+    name = models.CharField(max_length=255)
+
+    pitch_date = models.DateField(null=True)
+    bottling_date = models.DateField(null=True)
+
+    style = models.ForeignKey("styles.Style", on_delete=models.PROTECT)
+
+    fermenter_volume = models.FloatField(
+        help_text="Volume of liquid in fermenter prior to piching yeast"
+    )
+    bottled_volume = models.FloatField(help_text="Volume of liquid bottled")
+
+
+class Addition(models.Model):
+    ingredient = models.ForeignKey("ingredients.Ingredient", on_delte=models.PROTECT)
+    brew = models.ForeignKey("Brew", on_delete=models.CASCADE)
+
+    mass = models.FloatField(help_text="The mass in kg added")
+    added = models.DateTimeField(null=True)