Documentary · Finland · 1942 · 5m Miten on pestävä ✓ Seen + Watchlist ↗ Share No poster Director Cast Minna Koivisto as Self - Narrator (voice) Crew Minna Koivisto — Writer Synopsis The film teaches you how to wash laundry with minimal detergent. Key Collaborators Minna Koivisto Writer Follow the Thread More Documentary → Agent-readable