{"schemaVersion":"ready-scan.discovery-surface.v1","id":"urn:readyscan:corpus:buyer-question:narvi-q126810741-answer-b298ce1371d98311fd67","key":"buyer_question:narvi-q126810741-answer-b298ce1371d98311fd67","kind":"buyer_question","slug":"narvi-q126810741-answer-b298ce1371d98311fd67","canonicalUrl":"https://directory.readyscan.ai/corpus/buyer-question/narvi-q126810741-answer-b298ce1371d98311fd67","machineUrl":"https://directory.readyscan.ai/discovery/corpus/buyer-question/narvi-q126810741-answer-b298ce1371d98311fd67.json","datePublished":"2026-10-19","dateModified":"2026-10-19","materialFingerprint":"fnv1a64:60e611044a9aae89","membershipFingerprint":"fnv1a64:bca6d95df9b91baf","relatedEntitySlugs":["narvi-q126810741"],"relatedSurfaceKeys":["buyer_question:narvi-q126810741-answer-2c36a519fa9af705f3c8","buyer_question:narvi-q126810741-answer-3ba0d21d750392cc1393","buyer_question:narvi-q126810741-answer-4c72ec795b81957a30ca","buyer_question:narvi-q126810741-answer-66ecf0c2bf89dd7b6405","buyer_question:narvi-q126810741-answer-9f8025c0a7b9172c1daf","evidence:narvi-q126810741"],"sourceIds":["ready-scan-subjects"],"provenance":[{"snapshotId":"narvi-q126810741-content-2e61c590e61a0aa1-snapshot","sourceId":"ready-scan-subjects","sourceRecordId":"Q126810741","sourceRevisionId":"Q126810741:content:58f422d9bb250278","sourceContentHash":"fnv1a64:cbaf29ea8eda2229","recordRevisionId":"Q126810741:content:58f422d9bb250278","recordContentHash":"fnv1a64:e02e8f93853a21eb","sourceCanonicalUrl":"https://narvi.fi/","sourceModifiedAt":"2026-10-19T17:50:17.269Z","observedOn":"2026-10-19","permission":{"basis":"public_information","evidenceUrl":"https://narvi.fi/"},"attributionUrl":"https://narvi.fi/"}],"quality":{"method":"same_kind_unique_trigram_floor","minimumUniqueTrigramRatio":0.3,"status":"passed"},"title":"How often should the stones be changed?","summary":"Cited source answers across 1 active corpus record.","question":"How often should the stones be changed?","answers":[{"entitySlug":"narvi-q126810741","entityName":"Narvi","answer":"“It really depends on the usage. If sauna is used 1-2 times per week, it would be good to change them once a year. Try picking up two stones and knock them on each other; if they crack, they should definitely be replaced.”","sourceUrls":["https://narvi.fi/en/faq/"]}]}