Validity of using saliva instead of lukewarm water for testing lung adhesions

Description

The Chasam Sofer defends the established practice of shochtim using saliva for the bubbling test of lung adhesions, marshaling support from major Rishonim and Acharonim. He distinguishes the Talmud's prescription of lukewarm water for a lung adhered to the chest wall — which requires full submersion — from spot-checks of lobe-to-lobe adhesions, where saliva suffices. He concludes that any attempt to overturn this practice should not be heeded.