# Pasteur publishes Études sur la bière on yeast, spoilage, and brewing practice

Date: 1876

## The fact

In 1876 [Louis Pasteur](/people/louis-pasteur) published Études sur la bière, ses maladies, les causes qui les provoquent, procédé pour la rendre inaltérable, a book on yeast, contamination, and methods meant to stabilise beer. It is not the 1865 wine report and not a vaccination trial. The technical claim is that specific organisms and oxygen/contamination conditions explain beer diseases, and that brewing can be made more controllable.

## Context

After 1870 Pasteur mixed laboratory pride with national rivalry. The beer book is both a microbiology treatise and a patriotic industrial brief. That nationalist framing is stored more sharply on a separate polarisation row. Hansen’s later pure-culture yeast work in Copenhagen is not erased and is not this book. Printers, brewers, and assistants shared the object. Sharing does not erase Pasteur’s title page.

The contribution type is direct. The attached driver is [industrial-policy-activism](/drivers/industrial-policy-activism). The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself.

## Evidence and sources

Gallica at https://gallica.bnf.fr/ holds nineteenth-century French scientific books including Pasteur’s brewing studies in public digitisation. FEMS at https://academic.oup.com/femsre/article/48/3/fuae010/7659358 independently treats beer and wine as industrial chapters of the same career, not as one flask.

Official or archival record: Gallica — printed Pasteur papers and Comptes rendus (https://gallica.bnf.fr/; Bibliothèque nationale de France).

## Significance

Industrial-microbiology path. Modest weight: a book is not a brewing monopoly. High confidence on the 1876 publication date.

Shared responsibility is part of Pasteur publishes Études sur la bière on yeast, spoilage, and brewing practice. Naming Louis Pasteur does not delete co-authors, institutions, or later transmitters. The lag from 1876-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

## What is established and what is not

Established: Études sur la bière appeared in 1876 under Pasteur’s name. Not established: that French beer then overtook Bavarian beer in a measured export series because of this volume. Contribution is recorded as He authored the 1876 brewing study after wartime work on French beer. Brewers and laboratory assistants ran the vats. The impact note is A public book on yeast purity and beer diseases is an industrial microbiology instrument distinct from the earlier wine-heat reports. The dated heading stays Pasteur publishes Études sur la bière on yeast, spoilage, and brewing practice on 1876-01-01, not a later statue, UNESCO listing, or school film. Printers, unnamed clerks, and later editors may appear in the same file without becoming this instrument.

If a number is not in the two records named above, it is not supplied here.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

Confidence is stated on the impact path, not hidden in adjectives. Beer is not wine heat and not Pouilly-le-Fort. Mixed effects of Pasteur publishes Études sur la bière on yeast, spoilage, and brewing practice are separate paths.

## People

- Louis Pasteur: https://factrail.ai/people/louis-pasteur

## Drivers

- Industrial-Policy Activism: https://factrail.ai/drivers/industrial-policy-activism

## Sources

- https://academic.oup.com/femsre/article/48/3/fuae010/7659358
- https://gallica.bnf.fr/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/pasteur-beer-etudes-1876