ingredient
Rice flour for hoppers and string hoppers: read the bag first
Separate plain rice flour, sweet rice flour and prepared mixes, then check the pan or press before starting a Sri Lankan breakfast.
AI editorial review: 2026-10-22
Hoppers and string hoppers are different projects
Hoppers, also called appa or appam, are bowl-shaped pancakes cooked in a curved hopper pan. String hoppers, also called indiappa or idiyappam, are fine strands of dough pressed onto supports and steamed. Their flour choices, doughs and equipment should not be combined into a single method.
A bag that works in one published method does not automatically work in the other. This is a buying and equipment guide; use a complete recipe or the exact mix’s directions for quantities, fermentation and cooking.
Plain rice flour and sweet rice flour are not the same
For a method specifying ordinary rice flour, avoid an automatic swap to a bag labeled sweet rice flour, glutinous rice flour or mochiko. Just One Cookbook describes mochiko as flour from glutinous rice used for a sticky, chewy result.
The word glutinous describes that rice’s texture; it does not mean wheat gluten was added. That still does not make it the correct flour for a particular hopper recipe. Match the grain and product type before trying to correct an unsuitable flour with extra water.
Sources: [3]
String hopper flour is a use label
Prepared string-hopper flour may be sold as white or red. Read its ingredients and treatment instructions rather than assuming the name guarantees rice. Prima’s own string-hopper flour page discusses a wheat-based flour, with different water absorption from other varieties.
For a gluten-free or wheat-free requirement, check the actual package and its relevant claims. A traditional dish name, a picture of white strands or an online category called rice flour is not an allergen declaration.
Water temperature belongs to the product and method
Hungry Lankan’s string-hopper recipe uses a prepared flour and warm water; Prima’s method calls for boiling water with its product. Those instructions are not evidence that water temperature is irrelevant. Flour treatment and composition change how a dough takes up water.
Start with directions for the exact flour. Add water as directed rather than assuming a universal cup-for-cup ratio. A dry, cracking dough and a wet, sticky dough require different corrections; identify the flour before searching for a rescue.
Check the equipment before mixing
For string hoppers, you need a suitable fine-hole press, food-safe supports or trays, and a steamer they fit inside. Check that the lid closes and steam can circulate. A hopper pan is not a string-hopper press.
For bowl-shaped hoppers, check the pan’s heat-source compatibility, handles and lid. Read the pan maker’s seasoning instructions; a method for a bare-metal pan need not suit a nonstick one. These checks avoid having batter ready before discovering that the pan cannot sit safely on your stove.
Flour still needs cooking
Do not taste raw dough or batter to check salt. FDA warns that flour can contain harmful bacteria and should be cooked. Clean the counter and utensils after handling it, and keep uncooked flour away from ready-to-eat sambol.
For a first meal without specialty equipment, choose the collection’s skillet-cooked pol roti, which uses all-purpose wheat flour. Come back to hoppers or string hoppers with a matched flour, method and tool.
Research sources
- Roshani Wickramasinghe / Hungry Lankan — Sri Lankan Hoppers (checked 2026-10-22)
- Roshani Wickramasinghe / Hungry Lankan — Sri Lankan String Hoppers (checked 2026-10-22)
- Namiko Hirasawa Chen / Just One Cookbook — Mochiko (Japanese Sweet Rice Flour) (checked 2026-10-22)
- Prima Ceylon — String Hoppers Flour (checked 2026-10-22)
- FDA — Food Allergies (checked 2026-10-22)
- FDA — Flour Is a Raw Food and Other Safety Facts (checked 2026-10-22)
- Dini Kodippili / The Flavor Bender — Sri Lankan Pol Roti (checked 2026-10-22)