When feed has been eaten too hastily, or when it is cold and wet, the digestive process is imperfectly performed, and the feed contained in the paunch ferments, during which process large quantities of gas are formed.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
But recent investigations which have been made into the nature of the "vitamines," food ferments which are only partly understood, suggest that prolonged cooking of food may be a great mistake.
"The Book of Life: Vol. I Mind and Body; Vol. II Love and Society"
Upton Sinclair
Honey is nearly pure sugar together with certain ferments and flavoring extracts, derived in part from the flowers from which it is gathered, and in part from the stomach, or crop, of the bee.
"A Handbook of Health"
Woods Hutchinson