Agar Powder Substitutes

Agar powder is a versatile ingredient used as a vegetarian, vegan-friendly alternative to gelatin in cooking and baking. Derived from red algae, it acts as a gelling agent and thickener to provide structure, texture, and stability in desserts, confections, savory dishes, and more.

Agar Powder Substitutes

However, agar powder can be tricky to find in regular grocery stores in some areas. When a recipe calls for agar powder and you don't have it on hand, what are the best substitutes?

What is Agar Powder?

When mixed with water and boiled, agar powder forms a gelatinous substance that works well for thickening, stabilizing, gelling, and adding texture to foods.

The gelling properties of agar make it an ideal substitute for animal-based gelatin in vegetarian and vegan recipes. It allows recipes like puddings, mousses, jellies, confections, ice creams and more to set firmly.

Agar is commonly sold as bars, flakes, strands or powder. The powdered form dissolves more easily than other forms.

Outside of cooking, agar powder has scientific uses for helping provide a growing medium for microbiological cultures.

Some key properties and benefits of agar powder include:

  • Thickening ability - thickens sauces, soups, pie fillings
  • Gelling power - sets desserts, jellies, confections
  • Stabilizing function - stabilizes foams like mousses or soufflés
  • Neutral taste - doesn't alter flavors in recipes
  • Vegetarian/vegan - suitable for plant-based diets
  • Gluten-free - can be used by those with celiac disease
  • Nutritious - rich in fiber, calcium, iron and other minerals

With its versatility in cooking and nutrition profile, it's easy to see why agar is a valued ingredient in many kitchens.

Reasons for Needing a Substitute

There are a few key reasons why you may need to use an agar powder substitute:

  • Unavailability - Agar powder can be hard to locate in regular grocery stores, especially in Western countries, so you may not be able to find it easily.
  • Dietary restrictions - Though agar powder is vegetarian and vegan, some alternatives like gelatin are not suitable for these diets.
  • Flavor considerations - Substitutes can offer a more neutral taste if you want to avoid any subtle flavor from the agar powder.
  • Cost - Agar powder is more expensive than some substitutes like cornstarch or arrowroot.
  • Handling considerations - Agar powder requires boiling before use, whereas some substitutes can be sprinkled in dry.
  • Correct gelling - Agar powder won't gel properly with acidic ingredients, so substitutes are better suited.
  • Desired consistency - Alternatives like gelatin or cornstarch result in different textures than agar.

Properties to Look for in an Agar Substitute

When evaluating the best stand-in for agar powder, here are some ideal properties to look for:

  • Gelling ability - The ability to set or gel a recipe is the prime function of agar powder. Alternatives like gelatin or pectin can achieve this.
  • Thickening capacity - Most agar substitutes should thicken to some degree. Cornstarch and arrowroot are excellent thickeners.
  • Stability - The substitute should stabilize whatever it's added to and hold its shape when set without melting easily.
  • Neutral in flavor - A neutral taste is ideal to avoid altering the dish's intended flavors.
  • Dietary appropriate - For vegetarian/vegan recipes, plant-based substitutes like agar flakes are required.
  • Gluten-free - Substitutes like xanthan or guar gum suit gluten-free diets.
  • Easy to use - Substitutes that can be sprinkled or stirred in are convenient.
  • Accessible - Easily found in regular grocery stores or online for quick, affordable acquisition.

Best Agar Powder Substitutes

Here is a table outlining the top substitutes for agar powder, the substitution ratio, and their effects on texture and flavor:

SubstituteRatioEffects on Texture and Flavor
Agar Flakes1:1No change
Gelatin Powder1:1 to 3:1Softer set, light flavor
Pectin Powder1 part agar : 1.5 parts pectinFirmer set, no flavor change
Cornstarch2:1 agar to cornstarchThinner, can be starchy taste
Arrowroot Powder2:1 agar to arrowrootNo flavor change
Xanthan Gum1:1Thicker, gummy
Guar Gum1 tsp per 1 Tbsp agar powderThicker
Carrageenan1:1 to 1:2No flavor change

Now let's explore each of these agar powder substitutes in more detail:

Agar Flakes

Agar flakes are simply agar powder dried into flakey bits rather than a fine powder. They can be used in place of agar powder in a 1:1 ratio.

Pros: Very easy to substitute in the exact amount specified since it's the same ingredient in a different shape. Results will be identical to using agar powder.

Cons: Agar flakes may take a bit longer to dissolve fully when making the gel.

Gelatin Powder

Gelatin is made by boiling animal bones, skins, and tissues. It is sometimes avoided by vegetarians/vegans. Unflavored gelatin provides excellent gelling ability.

Pros: Readily available in grocery stores, dissolves easily in hot water, sets firmly.

Cons: Not suitable for vegetarian/vegan recipes, can add a subtle meat-like flavor. Requires refrigeration to set.

Pectin Powder

Pectin is a natural gelling agent found in fruit. It is commonly used to make jams and jellies.

Pros: Works well in desserts and sweet treats. Easy to use by just mixing into a recipe. Adds fiber and nutrients.

Cons: Can provide a different, less firm texture than agar. Not ideal in savory dishes.


A common kitchen staple made from corn. It thickens liquids effectively when cooked.

Pros: Very affordable and accessible ingredient. Easy to use and mixes smoothly into liquids.

Cons: Can result in a gloppy or slimy texture if overused. Imparts a mild sweetness.

Arrowroot Powder

Arrowroot is a starchy powder extracted from the roots of a tropical plant. It's used as a thickener like cornstarch.

Pros: Neutral in taste, creates clear gels rather than cloudy ones. Appropriate for acidic recipes.

Cons: Can clump if not adequately dissolved in liquids first. Less thickening power than agar powder.

Xanthan Gum

A fermented sugar gum used as a thickener and stabilizer in gluten-free baking.

Pros: Useful to mimic the texture and moisture retention provided by gluten. Just a small amount needed.

Cons: Can create unpleasant gummy or slimy textures if too much is used. Avoid in those with gut sensitivities.

Guar Gum

Derived from guar beans, this is another thickening agent, especially in gluten-free recipes.

Pros: Only a tiny amount is required to thicken liquid. Also used in hair products and cosmetics.

Cons: Produces a slimy texture at higher amounts. Large doses could cause digestive upset.


Carrageenan comes from red seaweed and is used as a thickening agent.

Pros: No flavor impact. Mimics textures of dairy in vegan recipes like ice creams.

Cons: May not achieve as firm of a gel as agar powder. Can cause digestive issues in some.

Example Recipes Using Agar Substitutes

To understand how these substitutes work in practice, let's look at some examples swapping agar powder for common alternatives in popular recipes:

Vegan yogurt - Agar flakes could be substituted 1:1 for the agar powder to provide the same gelling effect for the coconut milk to set into yogurt.

Fruit jam - Swap agar powder for an equal amount of pectin powder to allow the jam to gel with the naturally occurring pectin in the fruit.

Lemon curd - For the high acidity lemon curd recipe, cornstarch or arrowroot work better than agar powder to thicken the filling without curdling.

Gluten-free brownies - Guar gum added to the dry ingredients mimics the binding and moisture retention the agar powder would provide.

Coconut panna cotta - Gelatin makes an easy swap for the agar in this custard dessert with similar setting results.

Gravy - Cornstarch thickens the savory gravy without agar powder's gelling effect. An easy swap in this sauce.

Cherry pie filling - The liquid gelling ability of agar powder is replaced with arrowroot's thickening power in the filling.

Vegan cheese - Carrageenan lends a similar texture as the agar powder in this dairy-free cheese.

Tips for Agar Powder Substitution Success

To effectively swap out agar powder for an alternative, keep these tips in mind:

  • Start with a smaller amount of the substitute and add more as needed for the right consistency. It's easier to thicken further than to thin out.
  • Look for substitutes with neutral flavors to avoid changing the dish's intended taste.
  • Mix substitutes first with other dry ingredients or with liquids to evenly incorporate and avoid clumping.
  • Heat and cool substitute mixtures properly to activate gelling/thickening. Follow package instructions.
  • Experiment with a test batch first before making for guests or a special event.
  • Consider the final use - will it be heated, served cold, sliced, molded? Pick an appropriate substitute.
  • Account for setting time - some substitutes may take longer than agar powder to fully set.
  • Use a conversion calculator to determine the right amount if substituting by weight rather than spoon measures.
  • Make notes on substitutions, ratios, textures results to perfect recipes and replicate successes.

Proper preparation and an adjustable, creative mindset will allow you to masterfully substitute for agar powder.


Can I use gelatin instead of agar powder?

Yes, unflavored gelatin makes an excellent substitute in a 1:1 ratio. Keep in mind gelatin is not vegetarian.

What's the best agar powder substitute for pie fillings?

Cornstarch and arrowroot powder work well to provide thickness in fruit pie fillings without gelling.

Can I use cornstarch instead of agar powder to thicken sauces?

Yes, cornstarch can thicken savory sauces in place of agar powder. Use about 2 times the cornstarch to agar powder.

What powder sets up vegan jello like agar?

For vegan recipes, pectin powder and agar flakes create a similar firm gelled texture as agar powder.

Is guar gum the same as agar agar?

No, guar gum comes from beans while agar is seaweed-based. But guar gum can mimic some of agar's thickening ability.

What's a good agar substitute for glazing tarts?

Fruit pectin is excellent in place of agar powder for thickening and glazing fruit tarts.


Agar powder might be considered an exotic or hard to find ingredient by some home cooks. But as we've discovered, there are numerous options on hand to substitute agar powder seamlessly across sweet and savory recipes.

Cornstarch, gelatin, agar flakes, arrowroot and pectin are accessible alternatives that can allow you to adapt recipes just as the original ingredient would.

Sarah Cortez
Sarah Cortez

My name is Sarah and I'm a baker who loves trying out new recipes and flavor combinations. I decided to challenge myself to use a new spice or ingredient powder in my baking each week for a year. Some successes were the cardamom sugar cookies, vivid turmeric cake, and beetroot chocolate cupcakes. Failures included the bitter neem brownies and overwhelmingly hot ghost pepper snickerdoodles. Through this experience I've discovered amazing additions to spice up desserts while learning how to balance strong flavors. Follow my journey as I push the boundaries of baking with unique powders!

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