Tidal mills were used in Red Hook to grind grain into flour. They were also used to grind ginger. Water from the twice daily high tides was captured in mill ponds. A gate could be opened, sending the water rushing down a channel and turning the large wheel of the mill. The large waterwheel would, via large wooden gears, rotate heavy mill stones.
Freeke’s Mill, also known as Brouwer’s Mill, was slightly inland of Red Hook roughly in present day Park Slope.