Śrīmad-Bhāgavatam · Text 11.18.5
Who is speaking and story frame
अग्निपक्वं समश्नीयात् कालपक्वमथापि वा ।
उलूखलाश्मकुट्टो वा दन्तोलूखल एव वा ॥ ५ ॥
agni-pakvaṁ samaśnīyāt
kāla-pakvam athāpi vā
ulūkhalāśma-kuṭṭo vā
dantolūkhala eva vā
One may eat foodstuffs prepared with fire, such as grains, or fruits ripened by time. One may grind one’s food with mortar and stone or with one’s own teeth.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.