Stop stewing over the baffling array of products in the soup aisle. There are real culinary differences between stock, broth and bone broth – and knowing when to use which will completely change your cooking.
If you’ve ever stared at a recipe wondering if you can swap between broth and stock, you’re not alone.
Stock, broth and bone broth are all kitchen staples, but each brings something a little different to your cooking. While many of us have most likely used one for the other, knowing the real difference between the three can have a surprisingly big impact on your soups and stews.
So before you start simmering, here’s what sets stock, broth and bone broth apart – and why it matters.

Stock vs. broth vs. bone broth
Stock and bone broth are both flavour bases used in cooking by simmering bones with water, but they differ in how they’re made and what they bring to a dish.
Stock is typically lighter and more versatile, while bone broth is simmered for longer to create a richer, more concentrated base.
Broth is made by simmering meat and vegetables without bones. It’s lighter than stock, and can even be enjoyed on its own.
What is stock?
Stock is a liquid used as the foundation of everyday soups, stews, sauces and gravies. It acts as both the base of a dish and a way to add body and depth of flavour without overpowering the other ingredients.
Traditional stock is made by simmering fish, chicken, pork or beef bones in water with vegetables such as onion, carrot and celery, and sometimes herbs and spices. There’s no need to add any salt – as stock is a foundational ingredient, skipping the seasoning allows you to have full control over the seasoning of your final dish.
This process extracts flavour and collagen from the bones, creating a light, slightly gelatinous liquid with subtle depth of flavour.
Cooking times vary, with fish stock taking an hour or less due to the delicate nature of the carcass. Chicken stock can be simmered for up to 3-4 hours, and pork and beef stock can be cooked for anywhere from 3 hours up to about 12 hours if you really want to fully develop their rich flavour and body.

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Flavour tip: For even more deep and complex flavour, roast your bones at 200°C to 230°C for around 45 minutes before simmering. This works best for beef and pork bones.
Once a stock is chilled, it should have a nice ‘jiggle’ to it from the collagen extracted from the bones, which is broken down into gelatine during the cooking process.
Vegetable stock differs in that it contains no bones or connective tissue, so it cooks much faster – usually in around 45-60 minutes – since flavour is quickly extracted from the vegetables. It shouldn’t be cooked for longer than this or it could turn bitter. There will also be no ‘jiggle’, as there is no collagen in vegetables.
What is broth?
Broth is a much thinner, lighter liquid that differs from stock in that it’s made from meat and vegetables – no bones are involved. Herbs and spices can also be added. It’s also well seasoned, as it’s meant to be consumed as it is. Think of it as a meat-flavoured tea.
Broth should be simmered for around 1-2 hours.
Broth is perfect as a light soup for sipping straight from a mug, or as a clear base for soups like chicken noodle. It can also be used in place of water for cooking grains or vegetables, to add a lovely savoury element.

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What is bone broth?
Bone broth is similar to stock but is made by simmering a large number of bones – ideally a mix of bones rich in cartilage, marrow and meat – with herbs for a much longer period, typically 12 to 48 hours. This slow cooking process creates a more concentrated savoury base rich in gelatine (from collagen) extracted from the bones. Once chilled, it will be extremely thick.
Bone broth is often used as both a cooking base and as a drink, valued for its rich flavour and purported health benefits. You can choose to season it, or leave it unseasoned, depending on how you plan to use it.

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Is bone broth healthier than regular stock?
Bone broth is often perceived as being healthier than regular stock, largely because it’s believed that the longer simmering time allows more compounds like collagen, amino acids and minerals to be released from the bones. While it’s true that bone broth is higher in protein and collagen than stock, the long cooking time means that there are only tiny traces of other minerals, such as calcium and magnesium, remaining.
The higher collagen content is why bone broth is often associated with potential health benefits such as supporting gut health, joint function and skin elasticity. However, while dietary collagen supplements show promise in these areas, there is little clinical evidence to support these claims for bone broth.
Traditional stock may contain less collagen, but it also usually contains less salt than bone broth, making it a healthier choice if you’re watching your sodium intake.

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Can you use stock instead of bone broth?
In short, yes – but the end result won’t be exactly the same.
While stock and bone broth can often be used in place of each other, they can produce slightly different results due to variations in texture and flavour.
Supermarket-bought stock is often higher in salt than homemade versions, as it is usually pre-seasoned. It’s worth tasting your dish before adding extra salt, or choosing a low-sodium option to avoid over-seasoning. Supermarket stock also usually doesn’t contain gelatine, so will be much more watery than traditional homemade stock.
If you’re swapping stock for bone broth in a recipe, be mindful of texture in lighter dishes like delicate soups or sauces, as bone broth’s thicker, more gelatinous nature can affect overall consistency.
So now that you’re equipped, it’s time to get cooking for comfort season.
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