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Bayberry Dye Bath

A gentle, plant-based dye made from bayberry residues left after wax extraction. Simmer to extract color, strain, then dye pre-wetted natural fibers. Expect pale greenish to gray/olive tones depending on fiber, mordant, and pH.
Prep Time 15 minutes
Cook Time 2 hours
Total Time 2 hours 15 minutes
Course Dye bath
Cuisine craft
Servings 100 g fibre

Equipment

  • Large non-reactive pot (stainless steel)
  • Second pot or bucket for straining
  • Fine sieve or muslin cloth
  • Stirring spoon (wood or stainless)
  • Tongs or dye stick
  • Gloves and apron
  • Thermometer (optional)
  • Bucket/bowl for pre-soaking fibers

Ingredients
  

  • Bayberry residues after wax extraction, well drained
  • Water
  • Natural fabrics or yarns cotton, linen, wool, silk, pre-washed and pre-wetted
  • Optional mordants
  • – Protein fibers wool/silk: alum 10–15% WOF
  • – Cellulose cotton/linen: alum 5–10% WOF + 5% cream of tartar or citric acid
  • Optional modifiers
  • – 1–2% iron ferrous sulfate of WOF for olive/gray-green shift
  • – 1 tsp vinegar cooler, fresher tone or 1 tsp baking soda (warmer tone)

Instructions
 

  • Prepare fibers: Wash to remove finishes/oils. Pre-soak in clean water. Mordant if desired (see amounts), rinse lightly, keep damp.
  • Extract dye: Cover bayberry residues with water in the stainless pot. Simmer gently (not a rolling boil) for 30–60 minutes.
  • Strain: Pour through a sieve/muslin into a second vessel; press residues lightly. Return the clear dye liquor to the dye pot.
  • Dye: Add pre-wetted fibers. Maintain just under a simmer for 60–120 minutes, moving gently for even color. Do not boil wool.
  • Cool & set: Remove from heat and let fibers cool in the bath 30–60 minutes.
  • Rinse & dry: Lift out, rinse in cool water until clear, gently squeeze, and dry in the shade.
  • Modify (optional): For olive tones, dip damp fibers 5–10 minutes in a very weak iron bath (1–2% WOF), watch the shift closely, then rinse well.

Notes

  • Shade range: Pale greenish to gray/olive; protein fibers take deeper color than cellulose.
  • pH effect: Slightly acidic → cooler green-gray; slightly alkaline → warmer olive.
  • Clarity: Filtering the liquor reduces flecks and yields cleaner color.
  • Scaling: For deeper shades, increase residues (up to a brimming pot per 100 g fiber) or extend dye time.
  • Fastness: Improves with proper mordanting and a 24–48 h cure before first wash; use pH-neutral soap.
  • Safety & Sustainability
    • Wear gloves; keep food and dye equipment separate.
    • Ventilate well and avoid copper/iron pots (they shift color).
    • Dispose of plant waste in household trash/compost; don’t pour concentrated baths into waterways.