Rolkem Rainbow Spectrum Iris Dust

Currently out of stock — check back soon or browse our full petal dust range for available colours.

Cool and floral, Iris is a soft blue-violet petal dust that captures the delicate hue of its namesake flower, ideal for realistic floral sugar work. The Rolkem Rainbow Spectrum Iris Dust is a finely milled, matte petal dust used for colouring and detailing sugar flowers, fondant, and edible decorations. Apply dry with a soft brush, or mix with a few drops of clear alcohol for a painted finish.

Key Details

• Colour: Iris
• Weight: 5g
• Finish: Matte
• Format: Powdered food colouring
• Brand: Rolkem Rainbow Spectrum
• Food-grade: Yes — suitable for direct contact with edible decorations

Best For

• Dusting handmade sugar iris and wisteria petals for lifelike floral cake toppers
• Blending with Violet or Lavender dusts to build shading and depth on purple sugar flowers
• Painting a soft blue-violet wash over fondant for spring and garden party cakes
• Adding a matte iris hue to butterfly cake decorations and wing details

Frequently Asked Questions

Should I use Rolkem petal dust dry or mix it with alcohol?

Both methods work well. For a natural, velvety finish on sugar flowers and fondant petals, dust on dry using a soft brush — this is the most popular technique for shading and contouring individual petals. To paint bold, opaque colour onto fondant or wafer paper, mix a small amount of petal dust with clear alcohol (such as rose spirit or vodka) to form a thin paste. The alcohol evaporates quickly, leaving a clean, vibrant colour without affecting the fondant surface.

Is Rolkem Rainbow Spectrum dust edible and food-safe?

Yes. Rolkem Rainbow Spectrum dusts are food-grade powdered food colourants approved for use in edible cake decorations. They are safe for direct contact with cakes, biscuits, macarons, chocolates, and other edible items. As with all decorating powders, they are designed for use as a surface decoration rather than as a bulk food colouring agent.

Browse the full petal dust range, or explore our edible glitter and cake decorating dusts collection for more finishing options.