What Is Pemmican? The Survival Food That Powered the 1925 Serum Run to Nome
- Leah Llach
- Apr 25
- 4 min read
At -50 degrees, food stops being food.
It becomes strategy.
Because in 1925, when a diphtheria outbreak hit Nome, Alaska, survival didn’t just depend on dogs, distance, or determination—
It depended on what they were eating.
Quick Answer
Pemmican is a traditional Indigenous North American food made from dried meat, rendered fat, and sometimes berries. It is extremely calorie-dense, long-lasting, and resistant to spoilage, making it ideal for survival in extreme conditions—like the 1925 serum run to Nome, where dog teams relied on it for energy during a life-saving relay.

What Happened in the 1925 Serum Run?
It’s -50 degrees.Not “feels like.” Actually -50.
The kind of cold where your eyelashes freeze. Where exposed skin doesn’t hurt—it just… stops working.
And in the middle of it—
A dog team is running.
Not exploring. Not wandering. Running.
Because in Nome, Alaska, children are dying from diphtheria.
The only thing that can stop it is antitoxin.And the nearest supply is over 600 miles away.
Planes can’t fly.The port is frozen.
There’s one option left:
Dogs.
The Relay That Saved Nome
They don’t send one team—that would take too long.
Instead:
~20 mushers
~150 dogs
A relay across Alaska
Each team runs a stretch. Hands off the serum. The next team goes.
No stopping. No delays.
Because time isn’t just time here—it’s survival.
Togo vs. Balto (And What Actually Happened)
Togo
Togo led the most dangerous stretch.
Older, but incredibly reliable
Ran over 250 miles
Crossed the frozen Norton Sound (not solid land—frozen ocean)
At one point, the ice broke.
The team was separated. The current started pulling them out to sea.
So his musher, Leonhard Seppala, tied a line to Togo and threw him across broken ice.
Togo pulled the entire team back to safety.
Yes—that actually happened.
Balto
Balto led the final stretch.
Blizzard conditions
Near-zero visibility
At one point, his musher couldn’t see the trail
Balto ignored human direction—and followed instinct.
The serum arrived in 5.5 days.

Where Food Comes In (This Is the Point)
Those dogs?
They weren’t running on vibes.
They were running on fuel.
High-fat. High-calorie. Compact.
Food that:
didn’t freeze into a brick
didn’t spoil
could be eaten quickly
actually sustained energy
That food was pemmican.
What Is Pemmican?
Pemmican is… not cute.
No plating. No garnish. No personality.
Just:
dried meat (often bison)
rendered fat
sometimes dried berries
That’s it.
But the process matters:
Meat is dried until brittle → ground into powder
Fat is melted
Everything is mixed and packed tightly
No air. No moisture
Which means:
It lasts.For a long time.
The word comes from the Cree word pimîhkân, meaning “manufactured grease.”
Honestly? Accurate.
Indigenous Innovation (Important Context)
Pemmican didn’t come from explorers.
It came from Indigenous communities in North America—especially the Cree and Métis.
Before European expeditions ever packed supplies, there were already advanced food systems designed for survival.
Pemmican is:
portable
shelf-stable
calorie-dense
engineered for function
Some versions included berries, adding small amounts of micronutrients—important in environments where deficiencies were common.
This wasn’t accidental.
It was designed.
Why Pemmican Was Perfect for the Serum Run
Think about the conditions:
Sub-zero temperatures
Massive calorie burn (5,000–10,000/day)
Long distances
Limited carrying capacity
You don’t want:
bulky food
spoilage
frozen, inedible bricks
You want:
calorie density
fat (for heat + energy)
durability
Pemmican checks every box.
That dense, slightly unappealing block?
That’s heat.That’s energy.That’s survival.

The Bigger Context: Pemmican as Power
At one point, pemmican was so important it became currency.
During the Canadian fur trade, companies like the Hudson’s Bay Company relied on it to feed voyageurs traveling thousands of miles.
There were even conflicts—“pemmican wars”—over access to it.
Because when a food sustains entire systems?
It stops being “just food.”

What They Were Really Up Against
This wasn’t a controlled operation.
It was:
a spreading outbreak
a fragile supply chain
a ticking clock
And one more problem:
The serum could freeze.
If it froze, it was useless.
So now you have:
dogs running through blizzards
humans navigating near-zero visibility
a medical supply that has to stay viable
All at once.
And somehow—
It works.
What Happened After
The serum arrived.The outbreak was contained.
The dogs became legends.
Balto got a statue in Central Park
Togo—who did the hardest stretch—was recognized later
(Which feels… very on brand.)
Because the loudest part isn’t always the most important one.
Why This Story Still Matters
It’s easy to focus on the drama:
the storm
the distance
the near misses
But underneath all of it—
Is something quieter.
Food.
Not as comfort.Not as culture.
As strategy.
FAQ
What is pemmican made of?
Dried meat, rendered fat, and sometimes berries.
Why was pemmican used in the serum run?
Because it’s calorie-dense, doesn’t spoil, and performs well in extreme cold.
How far was the serum run to Nome?
Over 600 miles, completed via relay in about 5.5 days.
Who was more important, Balto or Togo?
Togo covered the longest and most dangerous distance, while Balto completed the final leg—both were critical.
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