{"schemaVersion":"ready-scan.discovery-surface.v1","id":"urn:readyscan:corpus:buyer-question:teinture-sauvage-q136720843-answer-caaee0ba28c661b4898a","key":"buyer_question:teinture-sauvage-q136720843-answer-caaee0ba28c661b4898a","kind":"buyer_question","slug":"teinture-sauvage-q136720843-answer-caaee0ba28c661b4898a","canonicalUrl":"https://directory.readyscan.ai/corpus/buyer-question/teinture-sauvage-q136720843-answer-caaee0ba28c661b4898a","machineUrl":"https://directory.readyscan.ai/discovery/corpus/buyer-question/teinture-sauvage-q136720843-answer-caaee0ba28c661b4898a.json","datePublished":"2026-10-25","dateModified":"2026-10-25","materialFingerprint":"fnv1a64:aa1e6aaa28770c54","membershipFingerprint":"fnv1a64:7b75575729ca0be7","relatedEntitySlugs":["teinture-sauvage-q136720843"],"relatedSurfaceKeys":["buyer_question:teinture-sauvage-q136720843-answer-321a1a495ca08943f17c","buyer_question:teinture-sauvage-q136720843-answer-5c5b87c811e815cba9e0","buyer_question:teinture-sauvage-q136720843-answer-95ccf97a8fe7a0dbe809","evidence:teinture-sauvage-q136720843"],"sourceIds":["ready-scan-subjects"],"provenance":[{"snapshotId":"teinture-sauvage-q136720843-content-af7c1b4695a17364-snapshot","sourceId":"ready-scan-subjects","sourceRecordId":"Q136720843","sourceRevisionId":"Q136720843:content:9a6b10450cde59e1","sourceContentHash":"fnv1a64:68be835c3f741e9b","recordRevisionId":"Q136720843:content:9a6b10450cde59e1","recordContentHash":"fnv1a64:8f3ec7c5264ebec5","sourceCanonicalUrl":"https://teinturesauvage.com/","sourceModifiedAt":"2026-10-25T06:18:33.189Z","observedOn":"2026-10-25","permission":{"basis":"public_information","evidenceUrl":"https://teinturesauvage.com/"},"attributionUrl":"https://teinturesauvage.com/"}],"quality":{"method":"same_kind_unique_trigram_floor","minimumUniqueTrigramRatio":0.3,"status":"passed"},"title":"What can I use instead of alum?","summary":"Cited source answers across 1 active corpus record.","question":"What can I use instead of alum?","answers":[{"entitySlug":"teinture-sauvage-q136720843","entityName":"Teinture Sauvage","answer":"“Instead of aluminum salts, you can use plants as mordants: symplocos (plant alumina), tannin-rich plants (gallnut, sumac, birch bark…), and oxalic-rich leaves (rhubarb, sorrel, beetroot leaves…). At Teinture Sauvage this is how I mordant wool, silk, linen, and cotton. The comparison table summarizes the three types.”","sourceUrls":["https://teinturesauvage.com/alum-free-mordanting/"]}]}