A preserved mashed mixture of fat and plant food. Tastes bland, but not offensive. It lasts a very long time without refrigeration.
Pemmican is a low-tech long-lasting food, ideal for caravan trips. It can be cooked (after researched) from a mixture of 0.25 nutrition from meat and 0.25 nutrition from vegetables, without cooking skill requirement, on a campfire, fueled stove or an electric stove. A single batch produces 16 pemmican with 0.05 nutrition each, for 0.8 nutrition total, and up to 20 can be consumed in one sitting. It can also be purchased from traders.
Pemmican is very useful for long-term food storage before you get freezers, as it lasts 70 days unrefrigerated before rotting. It does not provide any mood boost though, so fine meals, which have more nutrition efficiency and also provide a +5 mood boost, are better for daily consumption.
While pemmican takes slightly more ingredients per nutrition than simple/fine meals while cooking, it is slightly more efficient while eating. The colonists try to eat just before actually getting hungry, so they will typically eat at about 0.7-0.8 hunger. A set meal restores a fixed 0.9 nutrition in one single piece, so they will often waste about 15% of it. Because pemmican comes in smaller pieces, colonists will take only as much as they need, and typically only waste about 2.5% while eating. These differences are small and nearly cancel each other out, but may be important/interesting to some players.