Can agar be melted in oil?

Question

This recipe for vegan parmesan apparently has no added liquid apart from melted coconut oil.
Does the agar actually melt and bind in this case?
From https://greenevi.com/vegan-parmesan-sliceable-grateable/
3/4 cup of cashews
3/4 cup of pine nuts
3 tbsp nutritional yeast
4 tbsp refined coconut oil
1 tsp agar agar powder
salt
INSTRUCTIONS
Place cashews and pine nuts in a food processor, and grind until you get a fine crumble.
Heat up coconut oil in a small pot over medium heat. Once it melted, add agar agar and cook for about 5 minutes, whisking constantly.
Add agar agar and coconut oil mixture, nutritional yeast, and a generous amount of salt to ground nuts, and pulse until incorporated.
Place cheese into a mold of your choice (I like to make one out of parchment paper, to resemble a parmesan shape), and press down lightly, if needed. Place in the fridge for at least 4 hours to let it set.
Cheese will keep for 7-10 days in the fridge. Enjoy!

Willk · Accepted Answer

Here is the molecular chemical structure of agar.
https://en.wikipedia.org/wiki/Agar#Composition

It is a polysaccharide and like all polysaccharides will be strongly hydrophilic.  To answer the question: there is no way a molecule like this will dissolve in oil.  You might be able to make an emulsion but you would need an emulsifier and there is none I recognize in this recipe.
As regards the larger question of why this recipe calls for agar I do not know.

moscafj · Answer

You can mix agar powder in melted fat, though other liquids are more common and/or more commonly part of formulas using agar. As I understand it, agar needs to be heated to the boil in order for it's thickening properties to be available. It is unclear to me if agar is for binding or to aid in emulsification in this case (probably more of the latter). But it is not heated after mixing in this recipe. Even if boiled and set, it certainly would not create the density of a parmesan cheese. So, I imagine this "cheese" is fairly soft, with the density mainly coming from nuts and solidified coconut oil. Do read the comments in your link, as there is some discussion on types of agar and coconut oil (and some problems that arise). It would be interesting to try half the recipe with the agar and half with out. Compare the results, and report back to answer your own question.

Answered by moscafj on May 18, 2021

Can agar be melted in oil?

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