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Dextrose

Dextrose in ice cream: what it is and why gelato makers use it

Dextrose is a simple sugar (glucose) in powder form, usually made from corn starch. In ice cream it is less sweet than table sugar (sweetening power about 70 vs 100) but lowers the freezing point more (anti-freezing power about 190 vs 100). The result: softer, less sweet ice cream.

· Stefano Chef

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What is dextrose?

Dextrose is pure crystalline glucose: a fine white powder that tastes only mildly sweet. Don’t confuse it with glucose syrup, which is liquid and behaves differently.

In gelato making it is one of the core sugars, together with sucrose (table sugar).

What dextrose does in ice cream

  • Softer ice cream: it lowers the freezing point, so the block comes out of the freezer less hard.
  • Less sweet: more softness without a cloying taste.
  • Fewer ice crystals: it helps bind water.

With the Ninja CREAMi and Tefal Dolci it matters even more, because the base sits 24 hours at −18 °C before processing. PAC and POD are explained in the gelato glossary.

Dextrose vs sugar: can you swap them?

Dextrose replaces part of the sugar, never all of it. On its own it makes ice cream barely sweet and too soft, melting at once.

The right balance depends on the recipe: fruit, fat and solids change everything. That’s why ICED Method recipes come with sugars already balanced for your machine. Rock-hard ice cream? Read ice cream too hard: causes and fixes.

Where to buy dextrose

  • Baking and ice cream ingredient shops.
  • Online, in 500 g or 1 kg bags.
  • Pharmacies and sports nutrition shops, sometimes sold as “glucose powder”.

Check the label: pure dextrose (glucose), no added flavourings.

Step by step

  1. Check that the recipe calls for dextrose or is balanced for it.
  2. Dry-mix dextrose, sugar and any stabiliser first so it doesn’t clump.
  3. Add the liquids and blend until fully dissolved.
  4. Pour into the pint up to the MAX line and freeze for 24 hours.
  5. Process with the recipe’s programme and taste the softness.

Frequently asked questions

Is dextrose bad for you?

It is glucose: for the body, a sugar like any other. The same moderation applies as with table sugar.

Is dextrose the same as glucose syrup?

No. Dextrose is a powder; glucose syrup is liquid and contains other sugars.

Can I make ice cream without dextrose?

Yes. Many recipes use only sugar. Dextrose helps when you want softer ice cream without extra sweetness.

Does dextrose work in the Ninja CREAMi and Tefal Dolci?

Yes. It is especially useful in machines that process a frozen block.

How much dextrose should I use?

It depends on the recipe. In the ICED METHOD app the recipes come with sugars already balanced for your pint.

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