The Student-t-test, one of the most used statistical tests in medicine, was developed by a beer brewer. From around 1900, the Irish Guinness brewery started recruiting scientists for the position of brewer in order to apply science to the production of beer in large quantities while maintaining consistency in terms of quality. One of these brewers was mathematician and chemist William Sealy Gosset (1876-1937). He developed statistical methods to deal with small sample surveys. Gosset's methods, and the accompanying t-distribution tables, enabled Guinness to take intelligent decisions about which ingredients to use, allowing them to produce high-quality beer that consistently tasted the same. Gosset wanted to publish his findings in scientific journals; however, the Guinness brewery was unwilling, as this could jeopardise their advantage over other breweries. They came to a compromise, in which Guinness allowed Gosset to publish his findings, as long as he used a pseudonym: Student. The Student's t-distribution remains one of the cornerstones of modern statistics.