Iota Carrageenan

Product is in stock


SKU: ML0004
Size: 30g
Minimum Shelf Life: 3 months
Technique: Modernist and Molecular



Iota carrageenan is most commonly used to set dairy-based puddings, as it reacts so strongly with the protein casein, found in milk and cream. The natural powder is extracted from a red seaweed, though the carrageenan powder itself is odourless, without a strong taste.

Iota carrageenan creates a beautifully smooth, melt-in-the-mouth feel, and more elastic than kappa carrageenan. Iota carrageenan dissolves in liquids to be both colourless and odourless, which means that it doesn’t affect natural colours or taste. Gels or jellies created with iota carrageenan are also thermo-reversible, meaning that they can be frozen, reheated, re-cooled and re-moulded. Iota carrageenan is at its best when used for a thick-set custard, with the ratio of <em >0.15g iota carrageenan per 100g milk or cream. Using this ratio, the custard holds its shape in a glass or a ramekin, though it won’t stand alone. Using 1.5g iota carrageenan with 100g cream the pudding can be turned out and holds its shape – though it loses its soft mouth feel.

Experiment with the iota carrageenan to make a vegetarian panna cotta. The seaweed was traditionally used for blancmanges, but it can be used for anything from peanut butter panna cotta to dill or milk kefir-flavoured custards.

Instructions for use

  1. Add iota powder to cold cream or milk at the desired ratio (0.15g:100g for a creamy thick-set custard, or 1.5g:100g for a firm-set turned-out pudding).
  2. Mix thoroughly with an electric hand blender to ensure there are no lumps.
  3. Heat to 70C – if adding sugar, then dissolve it into the liquid at this point.
  4. Press the warm liquid through a sieve into a mould, or straight into a tart or flan case.
  5. Leave to set at room temperature. 

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