Quebracho Bark – Cut & Ground
Source: Schinopsis lorentzii (Quebracho Colorado)
Quebracho bark is a warm-toned, condensed tannin-rich material traditionally used in natural dyeing, leather tanning and fibre pre-treatment. We offer both cut bark and ground bark, each suitable for slow processes and earthy beige tones.
• Cut Bark: Ideal for decoctions and slow extractions
• Ground Bark: Finely milled for quicker infusion and stronger colour release
🌿 For those looking for faster solubility, our Quebracho Extract is available as a separate listing.
Main Components:
• Condensed tannins
• Flavonoids (including fisetin & dihydrofisetin)
Suggested Quantities (WOF – Weight of Fabric):
Cut or Ground Bark
• 30–50% WOF (soaked overnight or simmered 1 hour)
Extract (sold separately, see link below)
• 5–15% WOF (dissolves directly in water)
Uses:
• Natural Dyeing of Protein & Cellulose Fibres – beige
• Iron Modification – create grey, warm taupe or darker brown/beige shades
• Tannin Pre-treatment for Cellulose – use prior to mordanting
• Ink & Surface Design – ground bark can be brewed into concentrated liquids
The Plant:
Native to Argentina and Paraguay, Schinopsis lorentzii (Quebracho Colorado) is a dense hardwood whose bark yields powerful condensed tannins. A favourite among natural dyers for its earthy, iron-reactive shades and broad fibre compatibility.
Light Fastness:
Medium to High (especially with iron modifier)
Form Options:
• Cut Bark – coarse, for slow extractions and decoctions
• Ground Bark – finer, for quicker and deeper colour releases
• Powdered Extract (sold separately) – fast-dissolving, highly concentrated
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