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Cereals and bread from USA

Carl Griffith's 1847 Oregon Trail sourdough starter

A wheat sourdough starter that the Griffith family says it has kept since 1847, when Carl Griffith's great-grandmother is said to have carried it west on the Oregon Trail. Carl gave it away to anyone who asked, and volunteers now mail it as dried flakes that the receiver revives with flour and water.

A short entry: the sources we found record only what is said here about Carl Griffith's 1847 Oregon Trail sourdough starter itself.

Short entryCereals and bread4 h – 12 h

Recipe

Amounts from a sourceThe keepers' revival instructions, which turn half a teaspoon of dried starter into about one cup of active starter.
Dried starter flakes1/2 teaspoon[carlsfriends-revive]
Lukewarm water, added at each of three feeds1 tablespoon, then 3 tablespoons, then 1/3 cup + 1 tablespoon[carlsfriends-revive]
Flour, added at each of three feeds1 tablespoon + 1 teaspoon, then 1/4 cup, then 1/2 cupAbout 3:4 water to flour[carlsfriends-revive]
Starterbackslop (heritage starter)

Total time across the recorded steps: 4 h – 12 h

Start
Drag the bar or press Play
shapes, not to countYeastsLactic acid bacteria21–29 °CSugarAlcoholCO₂

What changes: Water and a little flour bring the dried flakes back until they bubble

Step 1 of 4
Wake the dried starter with water and flour
Time
4–12 h
Reported
Temperature
21–29 °C
Reported
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Yeasts
Lactic acid bacteria
Levilactobacillus brevis
Lactobacilli

Output: a small bubbling starter.

Flavour
Not documented
Texture
Not documented
Colour
Not documented

Microbes at work in this step

dried yeasts and lactic acid bacteria rehydrate and start to grow

Method

Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source

At a glance

A wheat sourdough starter that the Griffith family says it has kept since 1847, when Carl Griffith's great-grandmother is said to have carried it west on the Oregon Trail. Carl gave it away to anyone who asked, and volunteers now mail it as dried flakes that the receiver revives with flour and water. Made in 4 steps over 4 h – 12 h. The longest step, wake the dried starter with water and flour, takes 4–12 h (Carl's Friends (Oregon Trail Sourdough Preser…) and runs at 21–29 °C (Carl's Friends (Oregon Trail Sourdough Preser…). Saccharomyces cerevisiae and Mostly Levilactobacillus brevis, with smaller amounts of eight other lactobacilli do most of the fermenting.

Key numbers
Main step4–12 hReported[carlsfriends-revive]Wake the dried starter with water and flour
Temperature21–29 °CReported[carlsfriends-revive]Wake the dried starter with water and flour

What makes this one different

Carl's starter is a single named, long-kept culture passed on by post from one family, not a regional style. Its reported bacteria are mostly L. brevis, which make mainly lactic acid and a milder sourness than starters rich in acetic acid.

Safety

The keepers suggest a water temperature that feels neither warm nor cold on the wrist, and filtered water if tap water is heavily chlorinated.

History and sources

Every number is labelled with how it is known. How this atlas is made

Carl Griffith (born 1919 in Burns, Oregon; died 2000 in Sequim, Washington) said his family had kept the starter for over 150 years, and he gave it to anyone who asked. He became known for it on the Usenet group rec.food.sourdough in the 1990s. After his death, volunteers formed Carl's Friends to keep sending it; the group reports more than 108,000 starts sent since 2000. The 1847 Oregon Trail origin rests on family lore.

  1. [carlsfriends-revive] Carl's Friends (Oregon Trail Sourdough Preservation Society), How to revive your startweb
  2. [carlsfriends-about] Carl's Friends, About Carl, and home page (accessed 2026-10)web
  3. [wiki-carl] Wikipedia, Carl Griffith's sourdough starter (citing Masters K. 2019, The Frederick News-Post, for the NC State microbiology)wiki