What was Denis Papin's primary design goal for the 1679 steam digester?

Answer

To extract gelatin from bones using pressurized steam

Denis Papin developed his 'steam digester' in 1679. Although his concept laid the foundation for pressure cooking due to its ability to manage internal pressure, his immediate, specific application was not culinary efficiency. Instead, the apparatus was explicitly designed as a scientific or preparatory tool to use the power of pressurized steam for the purpose of extracting gelatinous material directly from bones, a process facilitated by the high temperatures achievable above the normal boiling point of water.

What was Denis Papin's primary design goal for the 1679 steam digester?
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