Astanga Hrudaya
विषमोऽसम्यगप्याशु सम्यग्वाऽपि चिरात्पचेत्। तीक्ष्णो वह्निः पचेच्चीघ्रमसम्यगपि भोजनम्॥७५॥
that which cooks the food sometimes too quickly though it is improperly consumed at improper time, more in quantity etc and some times too slow, though the food is properly consumed (at proper time and in usual quantity), is visamagni; tiksnagni is that which digests the food too quick even though the food is improper (or more in quantity);
english translation
viSamo'samyagapyAzu samyagvA'pi cirAtpacet। tIkSNo vahniH paceccIghramasamyagapi bhojanam॥75॥
hk transliteration by Sanscript