Evaporating some of the water is one possibility, but adding more of the concentrated orange juice to the diluted orange juice is the more practical approach.
(Evaporating some of the water; is; one possibility) (adding more of the concentrated orange juice to the diluted orange juice; is; the more practical approach)
Evaporating some of the water adding more of the concentrated orange juice to the diluted orange juice
is is
one possibility
the more practical approach