Berries stored in seal oil

What it is

Berries stored in seal oil are fruit held under a layer of rendered seal fat. In Alaska, Alutiiq and Sugpiaq communities kept salmonberries and other berries this way, and the same oil could also hold greens or fish eggs. The fat is the working medium: it covers the food and keeps air away from it, so the stored food keeps its character for a long period in a household store.

The practice is regionally specific. It belongs to a set of seasonal storage systems that used the oil of animals hunted or caught locally, and it depends on the preparation of the food and on the conditions where it is kept.

Seasons and gathering

The berries were gathered over a long season. Accounts describe gathering that began in late June and continued into the autumn, varying by species, and that some berries were picked after the first frost. A stored supply therefore came from several gatherings over the year rather than from one harvest.

Because the berries were harvested at different points in the season, their ripeness and condition differed when they went into the oil. The record does not say how that difference was handled in preparation.

Containers and oil

Traditional containers included dried seal stomachs. A container that holds food under oil is a simple sealed vessel, and its quality depends on how well the food is covered. Seal oil itself is a rendered fat, so its character depends on the seal that supplied it and on how it was rendered.

The sources describe these as composite systems: the food, the fat and the container work together. None of the parts keeps the food alone.

Related practices

Māori traditions also stored birds in their own fat, in gourds or kelp containers. The same idea of covering food with fat appears there, so the two traditions share a principle while differing in the food and the container.

Limits of the record

The sources give no shelf life, no storage temperature and no safety threshold for stored berries or greens under seal oil. Anaerobic, oil-covered food can carry hazards that a visual check does not reveal, and a container that smells sour, shows mould or looks altered should be discarded. The page does not supply a home method for this preparation.