Hanne Nielsen
Johanne (Hanne) Ane Margrethe Nielsen (
née Jacobsdatter, 11 September 1829 – 15 June 1903) was a Danish farmer who may have invented
Havarti cheese. In the 1800s, Nielsen traveled around Europe to learn about cheesemaking. Her farm was named Havarthigaard and was close to
Copenhagen. After returning from her travels, she developed the technique to create a new type of cheese. She was also a teacher, writer, and an accountant for the profit made from her butter and cheese. Her butter and cheese were served to royal families, including a cheese made with cumin that was served to King
Christian IX of Denmark. She was denied membership of the Royal Danish Agricultural Society although she had sought the assistance of dairy scientist Thomas Segelcke. Despite being skeptical of female accountants, Segelcke included her accounting method in a book he published.
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