Running low on modified cornflour? Here are the best verified substitutes, including how to adjust your measurements.

About modified cornflour
Modified cornflour is cornstarch that has been chemically or physically treated to alter its thickening properties, making it more stable under heat, freezing, and acidic conditions. It is widely used in commercial food production and home cooking to thicken sauces, gravies, custards, and fillings without breaking down or becoming watery upon cooling or reheating. Its key advantage over regular cornflour is its resistance to retrogradation, meaning sauces and gels remain smooth and stable rather than weeping liquid over time.
Best substitute
Regular cornflour (cornstarch) is the closest substitute and works well in most applications. It lacks the freeze-thaw and long-term stability of modified versions, so sauces may weep or become lumpy if refrigerated and reheated.
Alternative
Arrowroot produces a very clear, glossy gel and thickens at lower temperatures than cornflour. It is more stable in acidic mixtures and freezes reasonably well, making it a good natural alternative to modified cornflour in clear sauces and fruit fillings.
| Country | Name |
|---|---|
| Australia | modified cornflour |
| Canada | modified cornstarch |
| New Zealand | modified cornflour |
| United Kingdom | modified cornflour |
| United States | modified cornstarch |
Alternative
Tapioca starch thickens quickly and produces a clear, glossy texture similar to modified cornflour. It is particularly good in fruit pies and frozen desserts, holding up well to freezing without becoming watery upon thawing.
Alternative
Potato starch is a powerful thickener with good freeze-thaw stability, making it one of the better natural stand-ins for modified cornflour. Use slightly less than the called-for amount as it has a stronger thickening power and can become gluey if overcooked.
Alternative
Xanthan gum is a highly stable thickener that does not break down with heat, freezing, or acidity, making it an excellent match for the stability properties of modified cornflour. Use very small quantities as it is significantly more powerful than starch-based thickeners.