Hay tea

the juice of hay extracted by boiling, used as food for cattle, etc.

See also: Hay

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
He triumphed with a menu of celeriac baked in barley and fermented hay, cured and smoked celeriac and toasted hay tea.