These cooking sites, found in their thousands across the island, typically consist of a mound of fire-cracked stone and charcoal that accumulated over repeated use. The prevailing theory holds that water was heated in a trough by dropping in stones that had been fired in a hearth, allowing meat to be boiled; though other uses, including brewing or bathing, have also been proposed. What survives at Moanroe is legible mainly where a deep agricultural drain cuts through the site, exposing burnt material in section and giving a rare cross-sectional glimpse into the accumulated debris beneath the turf.

The site sits in reclaimed pasture, meaning the landscape around it has been significantly altered by drainage and agricultural improvement over the centuries, the kind of transformation that both threatens such monuments and, paradoxically, sometimes preserves their core. Notably, a second fulacht fia lies roughly 280 metres to the east-northeast, a pairing that is not especially unusual; fulachta fiadh often cluster in low-lying or waterlogged ground, close to the reliable water sources their function required. The proximity of the two sites in Moanroe hints at sustained prehistoric activity in this part of north Cork, even if the relationship between them, whether contemporary or separated by generations, remains unknown.