I'm tempted to say that the best humidity range is around 58/62% in the jar ( based on the boveda humidity packs ) , don't know about the exact temps, just that you need to keep the jar in the dark and cool place. You open your jar daily during the 1st week ( 5-15min ) then every 2 or 3 days during the 2 next weeks then once a week during 5 min will be enough 😊