Fructose Powder
Natural Reducing Agent for Indigo Dyeing
Fructose Powder is a plant-derived sugar used as a natural reducing agent in indigo dyeing. It plays a key role in creating and maintaining a reduced indigo vat, allowing the indigo pigment to dissolve and bond with fibres. Fructose is widely used in organic and fermentation-style vats as a safer, low-toxicity alternative to chemical reducers.
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Features
High-quality, fine fructose powder (fruit sugar)
Acts as a reducing agent for indigo vats
Suitable for organic and low-toxicity dye practices
Works with calcium hydroxide (lime) or other alkaline systems
Compatible with cotton, linen, wool, and silk
Dyeing Uses
Reduces indigo into its soluble leuco form for dyeing
Ideal for fructose indigo vats and 1-2-3 vat systems
Helps maintain a stable, reusable vat over multiple dye sessions
Supports smooth, even dye uptake and rich blue development
Suggested Use
Typically used in equal or slightly higher proportion to indigo (e.g. 1:1 to 2:1 ratio)
Combine with an alkaline agent such as calcium hydroxide (lime)
Add gradually and allow time for the vat to reduce before dyeing
Maintain warmth (around 40–50°C) for optimal vat activity
Safety Note
Fructose is low toxicity but should be handled as a fine powder. Avoid inhaling dust and store in a dry, sealed container. For dye use only.
A reliable and accessible choice for creating natural indigo vats, fructose supports a slower, more controlled reduction process suited to both beginners and experienced dyers.