All Dovo shaving brushes are entirely handmade by expert brushmakers in Dovo's Solingen factory.  Models with ringcap have handmade and machine-set knots, while models without ringcap are set into handles by hand.

Badger brush heads require proper care.  Do not immerse the brush handle in the water, use water <108°F, and avoid mashing, forceful, or twisting actuations.   Rinse the knot head thoroughly of all soap residue after use, and allow to fully dry before its next use.  Never enclose a damp brush.  As to the use of the modern synthetic badger knot, you may use the temperature of water that most pleases you, but all other considerations for care regimen are the same.