How to Make Bone Broth Slow Cooker: A Step-by-Step Guide

Introduction to How to Make Bone Broth Slow Cooker

Bone broth, a nourishing staple in many cultures, has recently surged in popularity as a health food. At its core, bone broth is a rich, flavorful liquid obtained by simmering bones, often with a mixture of vegetables and herbs, over an extended period. This process extracts valuable nutrients such as collagen, amino acids, and minerals from the bones, resulting in a nutrient-dense broth.

Historically, bone broth has been a way to utilize every part of an animal, ensuring no waste. Today, it’s celebrated not only for its sustainability but also for its health benefits. Rich in protein and low in calories, bone broth is believed to support joint health, digestive wellness, and skin vitality due to its high collagen content. Additionally, it’s a versatile ingredient in the kitchen, used in everything from soups and stews to gravies and sauces.

The resurgence of bone broth aligns with a growing interest in traditional foods and natural wellness. Its simplicity, combined with its profound nutritional profile, makes bone broth a sought-after component in health-conscious diets and culinary endeavors alike.

Why Use a Slow Cooker for Bone Broth?

Utilizing a slow cooker for making bone broth brings numerous advantages, both in terms of convenience and the quality of the broth produced. The slow cooker, a staple in many kitchens, is ideal for the long, gentle simmering required to extract the full range of nutrients from bones.

Convenience and Efficiency

The slow cooker’s “set it and forget it” nature allows for the creation of bone broth with minimal active cooking time. This is particularly beneficial for busy individuals who may not have the time to monitor a simmering pot on the stove. Additionally, slow cookers are energy-efficient, using less electricity compared to a stovetop, and they keep the kitchen cooler, a welcome advantage during warmer months.

Enhanced Flavor and Nutrient Extraction

The consistent low heat of a slow cooker ensures that the flavors meld beautifully over time, resulting in a deeply flavorful broth. This slow cooking process is also crucial for optimal nutrient extraction. It allows for the gradual breakdown of bones, releasing collagen, amino acids like glutamine, and minerals such as calcium and phosphorus into the broth. This method ensures that the resulting bone broth is not only delicious but also packed with health-promoting properties, making it a valuable addition to any diet. For more insights into the health benefits of bone broth, you can read more about the health benefits of bone broth.

Selecting the Right Ingredients

The quality of bone broth largely hinges on the ingredients you choose, with the type of bones being the cornerstone of the recipe. Each variety of bone imparts a unique flavor and nutrient profile to the broth.

Types of Bones to Use

  • Chicken Bones: Chicken bones, especially from the neck and feet, are rich in collagen, which gives the broth a gelatinous consistency upon cooling. Chicken bone broth is known for its light, versatile flavor.
  • Beef Bones: Beef bones, particularly knuckles, marrow bones, and ribs, contribute to a richer, more robust broth. They are ideal for a nutrient-dense broth, high in both collagen and minerals.
  • Turkey Bones: Similar to chicken, turkey bones make for a lighter broth but with a distinct flavor. They are especially popular around holidays when leftover turkey carcasses provide an excellent base for broth.

Importance of Quality Ingredients

The nutritional value of your bone broth is directly influenced by the quality of the bones used. Ideally, bones should be sourced from organically raised, grass-fed, or free-range animals. These bones are likely to have a higher nutrient content and are free from antibiotics and hormones, making your broth not only healthier but also more ethical and sustainable.

Optional Additions for Flavor

While bones are the essence of the broth, additional ingredients can enhance its flavor and nutritional value:

  • Vegetables: Common choices include onions, carrots, and celery. They add depth to the broth’s flavor.
  • Herbs: Herbs like parsley, thyme, and bay leaves infuse the broth with aromatic flavors.
  • Others: Ingredients such as garlic, ginger, and peppercorns can be added for an extra layer of complexity.

Incorporating these ingredients thoughtfully can transform your bone broth from a simple health tonic into a culinary delight, rich in both flavor and nutrients. Understanding the right ingredients is crucial for a nutritious broth. Explore various cooking techniques at Epicurious to learn more about selecting and preparing ingredients.

Preparing Ingredients for Slow Cooking

Proper preparation of the ingredients is key to maximizing the flavor and nutritional benefits of your bone broth. This involves cleaning and prepping the bones and preparing the vegetables and herbs that will accompany them in the slow cooker.

Cleaning and Prepping Bones

  • Rinse the Bones: Begin by rinsing the bones under cold water to remove any residual blood or impurities. This step is crucial for a clear, clean-tasting broth.
  • Roasting (Optional): For beef or lamb bones, consider roasting them in the oven at 400°F (200°C) for 30 minutes before slow cooking. This step caramelizes the bones, deepening the broth’s flavor profile. Chicken and turkey bones typically do not require roasting.

Preparing Vegetables and Herbs

  • Chop Vegetables: Roughly chop vegetables like onions, carrots, and celery. The pieces don’t have to be uniform or finely chopped, as they are primarily used for flavor and will be strained out later.
  • Prepare Herbs: Fresh herbs should be rinsed to remove any dirt. Tying herbs like thyme, rosemary, or parsley into a bundle makes them easier to remove after cooking.

Taking the time to properly prepare your bones, vegetables, and herbs will ensure that your bone broth is not only rich in nutrients but also full of the delicious, natural flavors that these ingredients offer. This preparation sets the stage for a successful slow cooking process, resulting in a broth that is both healthful and satisfying.

The Cooking Process

Creating bone broth in a slow cooker is a straightforward process, but attention to detail can significantly enhance the quality of your broth. Here’s a step-by-step guide to ensure you get the most out of your ingredients.

Step-by-Step Guide

  1. Assemble Ingredients: Place your prepared bones into the slow cooker. Add the chopped vegetables and any herbs or additional flavorings you’ve chosen.
  2. Add Water: Pour cold water into the slow cooker until all the ingredients are fully submerged. The cold water helps to extract the flavors and nutrients more effectively.
  3. Add Vinegar (Optional): A tablespoon of apple cider vinegar can be added to help leach minerals from the bones, although this is optional and based on personal preference.
  4. Start Cooking: Cover the slow cooker with its lid.

Cooking Duration and Temperature Settings

  • Temperature: Set your slow cooker to the low setting. High temperatures can cause the broth to simmer too vigorously, which can cloud the broth and give it a bitter taste.
  • Duration: The cooking time for bone broth can range from 12 to 24 hours. Chicken bones typically require less time (about 12-18 hours), while beef or lamb bones can benefit from the longer end of the range (up to 24 hours). The longer you cook, the more flavorful and nutrient-rich the broth will be.

Tips for a Richer Broth

  • Don’t Overfill: Avoid overfilling the slow cooker. Leave some space to allow for movement and simmering.
  • Skim the Fat: During the first few hours of cooking, skim off any impurities or foam that rise to the surface. This results in a clearer broth.
  • Strain Thoroughly: Once cooking is complete, strain the broth through a fine-mesh sieve or cheesecloth to remove all solid particles.
  • Cool Quickly: To preserve freshness and prevent bacterial growth, cool the broth quickly. You can do this by placing the container of broth in a bath of ice water.

Following these steps will yield a rich, flavorful, and nutritious bone broth, perfect for sipping on its own or using as a base in a variety of dishes.

After Cooking: Straining and Storing

Once your bone broth has finished cooking in the slow cooker, the next crucial steps are straining it effectively and storing it properly to maintain its quality and extend its shelf life.

How to Strain the Broth Effectively

  • Let it Cool Slightly: Allow the broth to cool just enough to handle safely. Straining hot broth can be dangerous due to the risk of burns.
  • Use a Fine-Mesh Strainer: Position a fine-mesh strainer over a large bowl or pot. For an even clearer broth, line the strainer with cheesecloth.
  • Strain in Batches: If you have a large volume of broth, strain it in manageable batches to avoid spills.
  • Discard Solids: Carefully pour the broth through the strainer, discarding the bones, vegetables, and herbs. These solids have given up their nutrients and flavors to the broth and can be composted.

Storage Tips and Shelf Life

  • Cool Quickly: To prevent bacterial growth, cool the broth quickly. You can place the container in a bath of ice water or divide the broth into smaller containers to cool faster.
  • Refrigerate or Freeze: Once cooled, the broth can be refrigerated or frozen. In the refrigerator, it will keep for up to a week. Ensure it’s in airtight containers to maintain freshness and prevent absorption of other food odors.
  • Portion for Freezing: For convenience, freeze the broth in portion-sized containers or ice cube trays for easy use in recipes.

Freezing and Reheating Methods

  • Freeze Properly: If using glass containers for freezing, leave some space at the top as the broth will expand when frozen.
  • Reheating: When ready to use, thaw the broth in the refrigerator overnight or use the defrost setting on your microwave. Reheat only the amount you need, either in a pot over the stove or in a microwave-safe container.

By following these straining and storing techniques, you can ensure your homemade bone broth retains its flavor and nutritional value, ready to be enjoyed whenever you need it.


Can Bone Broth be Overcooked?

While it’s difficult to “overcook” bone broth in the traditional sense, excessively long cooking times can lead to a deterioration in flavor. Cooking beyond 24-48 hours might result in a broth that tastes overly intense or slightly burnt. Additionally, prolonged cooking can break down nutrients, diminishing the broth’s health benefits. It’s best to stick to the recommended cooking times: 12-24 hours for chicken bones and up to 24 hours for beef or lamb bones.

Do Bones Need to be Roasted First?

Roasting bones before making broth is not a requirement, but it is a recommended step, especially for beef or lamb bones. Roasting at a high temperature caramelizes the surface of the bones, which enhances the flavor of the broth. For chicken or turkey bones, roasting is optional as these bones are already relatively high in flavor.

Is it Okay if the Broth Doesn’t Gel?

Yes, it’s perfectly fine if your bone broth doesn’t gel. The gelatinous consistency is due to the presence of collagen, which varies based on the type of bones used and their cooking time. A non-gelling broth is still nutritious and rich in other minerals and amino acids. Factors like too much water or not enough bones can also affect the gelling.

Can You Reuse Bones for Another Batch?

Bones can be reused for making broth, but each subsequent batch may be less flavorful and nutritious than the previous one. If you choose to reuse bones, consider adding a few fresh bones to the mix to enhance the broth’s flavor and nutrient content.

Differences in Making Bone Broth in an Instant Pot

Making bone broth in an Instant Pot or pressure cooker differs mainly in the cooking time. The high-pressure environment of an Instant Pot significantly reduces the cooking time required to extract nutrients from the bones. A typical bone broth in an Instant Pot can be ready in 2-3 hours, compared to the 12-24 hours needed in a slow cooker. However, some aficionados believe that the slow cooker method results in a deeper, more complex flavor profile.

Creative Ways to Use Bone Broth

Bone broth, rich in flavor and nutrients, can transform various dishes. Here’s how to creatively use it in your cooking:

As a Base for Soups and Stews

  • Flavor Enhancement: Use bone broth instead of water or commercial stock in soups and stews. It brings a depth of flavor, making these dishes more delicious and nutritious.
  • Nutrient Boost: Bone broth adds valuable nutrients to soups and stews, enhancing both taste and health benefits.
  • Versatile Use: It works well in a range of recipes, from chicken noodle soup to hearty beef stew, and even boosts plant-based dishes with its umami quality.

In Sauces and Gravies

  • Rich Texture: Bone broth gives sauces and gravies a velvety texture. Its gelatin content naturally thickens them, adding luxury.
  • Flavor Depth: It enriches gravies and sauces, complementing other ingredients and spices.
  • Healthy Alternative: Bone broth is a healthier base for sauces and gravies than heavy creams or processed stocks, cutting calories without losing flavor.

Drinking as a Nutritious Beverage

  • Health Tonic: Warm bone broth, seasoned with salt or lemon, is a comforting, healthful drink. It’s popular for gut health and immune support.
  • Light Meal Option: As a light, nourishing meal, especially in cold weather or when unwell, bone broth is an excellent choice.
  • Customizable Flavor: Enhance your bone broth drink with herbs, spices, turmeric, or ginger for extra health benefits.

Using bone broth in these ways not only adds flavor to meals but also ensures you enjoy the health benefits of this nutrient-rich liquid.

Conclusion and Final Thoughts

In summary, making bone broth in a slow cooker offers a blend of simplicity and health benefits. This method stands out for its convenience and efficient nutrient extraction. The slow cooker’s gentle heat releases collagen, amino acids, and minerals, enriching the broth with nutrients. Bone broth, versatile in its use, enhances soups, stews, sauces, and gravies, and serves as a nourishing drink. Its addition to meals brings both flavor and health benefits. This easy integration into daily cooking makes bone broth a valuable asset for health-conscious cooks. By adopting this traditional cooking method, we connect with culinary heritage and embrace a natural approach to well-being. Bone broth, prepared in a slow cooker, becomes more than just a dish; it’s a step towards a healthier lifestyle.

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