Cakradatta (Cikitsasangraha) 20.5

20.5

ugragandhaṃ purāṇaṃ syāddaśavarṣasthitaṃ ghṛtam .
lākṣārasanibhaṃ śītaṃ prapurāṇamataḥ param .. 5 ..

Clarified butter kept for ten years is old clarified butter, of pungent smell; / beyond that, resembling lac dye and cool, it is very old [clarified butter]. // 5