Twentieth-century historians of science emphasised the apparent connection between puritanism and experimental natural philoso- phy in mid-seventeenth-century England, but revisionist scholar- ship exposed the incorrect religious taxonomies undergirding this thesis. As both a staunch puritan and a well-connected figure in scientific networks, Ralph Austen provides an opportunity to re- examine the thesis. A horticulturalist, cider manufacturer and lay theologian based in Oxford from 1646 until his death in 1676, Austen was a friend and collaborator of Samuel Hartlib and Robert Boyle. He was also a pious puritan, steeped in Reformed divinity, and friends with premier Interregnum puritans, including John Owen. Austen’s life and career demonstrate that Baconian aims to reform learning could happily go hand-in-hand with, and be inspired by, puritan ideals, though they hampered his reputation in post-Restoration natural-philosophical circles. At the same time, via Austen we learn that puritan theologians responded positively to Baconian ideas, something hitherto underrepresented in the literature.