An improved desolventizer toaster. The invention includes a housing. Within the housing, a first set of trays and a second set of trays are mounted. The first trays and second trays are disposed such that they are generally vertically spaced from one another and in a generally parallel disposition with respect to each other. Means for mixing vapors are provided, and they are positioned in a vapor mixing zone which is intermediate the first set of trays and second set of trays.