diff --git a/src/humulus/recipes.py b/src/humulus/recipes.py
index 2ca92f1..d79c78a 100644
--- a/src/humulus/recipes.py
+++ b/src/humulus/recipes.py
@@ -20,7 +20,7 @@ from flask import Blueprint, flash, redirect, render_template, url_for
 from flask_wtf import FlaskForm
 from wtforms import (Form, StringField, DecimalField, TextAreaField, FieldList,
                      FormField, SelectField)
-from wtforms.validators import DataRequired
+from wtforms.validators import DataRequired, Optional
 
 from humulus.couch import get_doc_or_404, put_doc
 
@@ -85,6 +85,62 @@ class HopForm(Form):
             'amount': str(self.amount.data)
         }
 
+
+class YeastForm(Form):
+    """Form for yeast.
+
+    CSRF is disabled for this subform (using `Form as parent class) because it
+    is never used by itself.
+    """
+    name = StringField('Name', validators=[DataRequired()])
+    type = SelectField('Type', default='',
+                       choices=[(c, c) for c in ['', 'Liquid', 'Dry']],
+                       validators=[Optional()])
+    lab = StringField('Lab')
+    code = StringField('Lab Code')
+    flocculation = SelectField('Flocculation', default='',
+                               choices=[(c, c) for c in ['', 'Low',
+                                                         'Medium', 'High']],
+                               validators=[Optional()])
+    low_attenuation = DecimalField('Low Attenuation',
+                                   validators=[DataRequired()])
+    high_attenuation = DecimalField('High Attenuation',
+                                    validators=[DataRequired()])
+    min_temperature = DecimalField('Min Temp (°F)',
+                                   validators=[Optional()])
+    max_temperature = DecimalField('Max Temp (°F)',
+                                   validators=[Optional()])
+    abv_tolerance = DecimalField('ABV % tolerance',
+                                 validators=[Optional()])
+
+    @property
+    def doc(self):
+        """Returns a dictionary that can be deserialized into JSON.
+
+        Used for putting into CouchDB.
+        """
+        yeast = {
+            'name': self.name.data,
+            'low_attenuation': str(self.low_attenuation.data),
+            'high_attenuation': str(self.high_attenuation.data)
+        }
+        if self.type.data:
+            yeast['type'] = self.type.data
+        if self.lab.data:
+            yeast['lab'] = self.lab.data
+        if self.code.data:
+            yeast['code'] = self.code.data
+        if self.flocculation.data:
+            yeast['flocculation'] = self.flocculation.data
+        if self.min_temperature.data:
+            yeast['min_temperature'] = str(self.min_temperature.data)
+        if self.max_temperature.data:
+            yeast['max_temperature'] = str(self.max_temperature.data)
+        if self.abv_tolerance.data:
+            yeast['abv_tolerance'] = str(self.abv_tolerance.data)
+        return yeast
+
+
 class RecipeForm(FlaskForm):
     """Form for recipes."""
     name = StringField('Name', validators=[DataRequired()])
@@ -102,6 +158,7 @@ class RecipeForm(FlaskForm):
         min_entries=0,
         max_entries=20
     )
+    yeast = FormField(YeastForm)
 
     @property
     def doc(self):
@@ -109,15 +166,21 @@ class RecipeForm(FlaskForm):
 
         Used for putting into CouchDB.
         """
-        return {
+        recipe = {
             'name': self.name.data,
             'efficiency': str(self.efficiency.data),
             'volume': str(self.volume.data),
-            'notes': self.notes.data,
-            'fermentables': [f.doc for f in self.fermentables],
-            'hops': [h.doc for h in self.hops],
+            'notes': self.notes.data
         }
 
+        if len(self.fermentables) > 0:
+            recipe['fermentables'] = [f.doc for f in self.fermentables]
+        if len(self.hops) > 0:
+            recipe['hops'] = [h.doc for h in self.hops]
+        if self.yeast.doc['name']:
+            recipe['yeast'] = self.yeast.doc
+        return recipe
+
 
 @bp.route('/create', methods=('GET', 'POST'))
 def create():
@@ -127,7 +190,6 @@ def create():
         response = put_doc(form.doc)
         flash('Created recipe: {}'.format(form.name.data), 'success')
         return redirect(url_for('recipes.info', id=response['_id']))
-
     return render_template('recipes/create.html', form=form)
 
 
diff --git a/src/humulus/templates/recipes/create.html b/src/humulus/templates/recipes/create.html
index 37da459..1485cec 100644
--- a/src/humulus/templates/recipes/create.html
+++ b/src/humulus/templates/recipes/create.html
@@ -92,6 +92,28 @@
       <button type="button" id="add-hop" class="btn btn-secondary btn-sm">Add a hop</button>
     </div>
   </div>
+  {#-
+    Recipe Yeast
+  -#}
+  <div class="row"><div class="col"><h3>Yeast</h3></div></div>
+  <div id="yeast">
+    <div class="border pl-2 pr-2 pt-1 pb-1 yeast-form">
+      <div class="row">
+        <div class="col-sm-6">{{ render_field_with_errors(form.yeast.form.name, 'form-control-sm') }}</div>
+        <div class="col-sm-2">{{ render_field_with_errors(form.yeast.form.type, 'form-control-sm') }}</div>
+        <div class="col-sm-2">{{ render_field_with_errors(form.yeast.form.lab, 'form-control-sm') }}</div>
+        <div class="col-sm-2">{{ render_field_with_errors(form.yeast.form.code, 'form-control-sm') }}</div>
+      </div>
+      <div class="row">
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.low_attenuation, 'form-control-sm') }}</div>
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.high_attenuation, 'form-control-sm') }}</div>
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.flocculation, 'form-control-sm') }}</div>
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.min_temperature, 'form-control-sm') }}</div>
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.max_temperature, 'form-control-sm') }}</div>
+        <div class="col-sm">{{ render_field_with_errors(form.yeast.form.abv_tolerance, 'form-control-sm') }}</div>
+      </div>
+    </div>
+  </div>
   {#-
     Recipe Notes
   -#}
diff --git a/tests/test_recipes.py b/tests/test_recipes.py
index 0d63236..1d4be02 100644
--- a/tests/test_recipes.py
+++ b/tests/test_recipes.py
@@ -15,7 +15,7 @@
 from decimal import Decimal
 
 from humulus.couch import get_db
-from humulus.recipes import FermentableForm, HopForm, RecipeForm
+from humulus.recipes import FermentableForm, HopForm, RecipeForm, YeastForm
 
 
 def test_create(client, app):
@@ -29,7 +29,10 @@ def test_create(client, app):
         'efficiency': '65',
         'name': 'Test',
         'notes': 'Test',
-        'volume': '5.5'
+        'volume': '5.5',
+        'yeast-name': 'Test',
+        'yeast-low_attenuation': '60',
+        'yeast-high_attenuation': '75',
     }
     response = client.post('/recipes/create', data=data)
     assert response.status_code == 302
@@ -55,6 +58,41 @@ def test_info(client):
     assert b'Awesome Lager' in response.data
 
 
+def test_yeast_form_doc(app):
+    """Evaluates conditionals in generation of doc from a yeast form."""
+    yeast = YeastForm()
+    yeast.name.data = 'Test'
+    yeast.low_attenuation.data = Decimal('60')
+    yeast.high_attenuation.data = Decimal('75')
+
+    assert yeast.doc == {
+        'name': 'Test',
+        'low_attenuation': '60',
+        'high_attenuation': '75'
+    }
+
+    yeast.type.data = 'Dry'
+    yeast.code.data = 'INIS-001'
+    yeast.lab.data = 'Inland Island'
+    yeast.flocculation.data = 'Low'
+    yeast.min_temperature.data = Decimal('40')
+    yeast.max_temperature.data = Decimal('50')
+    yeast.abv_tolerance.data = Decimal('15')
+
+    assert yeast.doc == {
+        'name': 'Test',
+        'low_attenuation': '60',
+        'high_attenuation': '75',
+        'flocculation': 'Low',
+        'type': 'Dry',
+        'code': 'INIS-001',
+        'lab': 'Inland Island',
+        'min_temperature': '40',
+        'max_temperature': '50',
+        'abv_tolerance': '15'
+    }
+
+
 def test_recipe_form_doc(app):
     """Test if a recipeform can be turned into a document.
 
@@ -64,6 +102,18 @@ def test_recipe_form_doc(app):
     with app.app_context():
         recipe = RecipeForm()
 
+    recipe.name.data = 'Test'
+    recipe.efficiency.data = Decimal('65')
+    recipe.volume.data = Decimal('5.5')
+    recipe.notes.data = 'This is a test'
+
+    assert recipe.doc == {
+        'name': 'Test',
+        'efficiency': '65',
+        'volume': '5.5',
+        'notes': 'This is a test',
+    }
+
     ferm = FermentableForm()
     ferm.name.data = 'Test'
     ferm.type.data = 'Grain'
@@ -78,12 +128,14 @@ def test_recipe_form_doc(app):
     hop.duration.data = Decimal('60')
     hop.amount.data = Decimal('0.5')
 
-    recipe.name.data = 'Test'
-    recipe.efficiency.data = Decimal('65')
-    recipe.volume.data = Decimal('5.5')
-    recipe.notes.data = 'This is a test'
+    yeast = YeastForm()
+    yeast.name.data = 'Test'
+    yeast.low_attenuation.data = '70'
+    yeast.high_attenuation.data = '75'
+
     recipe.fermentables = [ferm]
     recipe.hops = [hop]
+    recipe.yeast = yeast
 
     assert recipe.doc == {
         'name': 'Test',
@@ -103,5 +155,10 @@ def test_recipe_form_doc(app):
             'alpha': '12.5',
             'duration': '60',
             'amount': '0.5'
-        }]
+        }],
+        'yeast': {
+            'name': 'Test',
+            'low_attenuation': '70',
+            'high_attenuation': '75'
+        }
     }