"Ask what you wish." Doul looks over the food and drink, and appears to have no problems or questions about it. It's not only food, but it is clearly designed to be eaten by humans and that covers his concerns.

"My home is very different from others on my own world. For us, there are three castes: the Quick, an undifferentiated mass of the living that are raised to work, be snuffed, and brought back to work; the Dead, the nobility who have been snuffed when they chose it and preserved as thanati; and a handful in Liveside, for families that have been raised from the Quick, but don't have the right to be preserved."