All / Online All Products Class Online Print Mastering Shoyu 2023 (Feb6&7) 2-day online crash course €135.00 Sold Out Book my spot Monthly Fermentation 2023 €145.20 Sold Out Book my spot Tane-koji for shoyu brewing by Akita Konno, coordinated by Marika Groen (English) €6.00 Sold Out Book my spot