Bed to certificate
Six summers in a shaded bed, then the certificate.
Roots are sold by age claim with no field record, and a buyer cannot check whether the root is six years old or younger.

Plant
Seed beds are planted and the year is logged.
Shade
Shading and soil checks are logged each season.
Lift
Roots are lifted at the agreed age and weighed.
Certify
The cooperative certifies the age on the lot.