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Sukumo: Dried Indigo Leaves Watered, Turned and Fermented for 75–90 Days
Sukumo is the composted indigo of Japanese aizome. Harvest and dry the leaves of Japanese indigo, heap them under cover, wet them well and turn them over and over while they ferment for about 75 to 90 days. Dried again, they become dark lumps rich in blue indigo, ready for the vat.
The picture: our diagram, leaves to dried heap to sukumo.
中级
About three months
说明
1
1
Harvest and dry
Harvest and dry
Cut the indigo plants, strip the leaves, and spread them on mats until fully dry. These are dried indigo leaves.
此步骤所需材料：
日本蓝草叶（鲜）20 公斤所需工具：
镰刀
竹制晾晒席
等臂天平2
2
Heap and wet
Heap and wet
Heap the dried leaves indoors on a clean floor and water them until thoroughly damp. Cover with mats.
所需工具：
水桶
水
编织席3
3
Turn and ferment
Turn and ferment
Every week or so, shovel the heap over from top to bottom, watering as you go so it stays damp. Keep this up for about 75 to 90 days.
所需工具：
铁锹水桶水编织席4
4
Dry and store
Dry and store
Spread the fermented mass to dry; it darkens to black, earthy lumps. Bag the sukumo and keep it dry.
所需工具：
竹制晾晒席
黄麻布袋等臂天平5
5
Turning calendar
Turning calendar
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