The roundel had an inner circle with four furnaces which produced a constant temperature. The chimney sucked air through holes in the walls at ground level, which was then heated by charcoal or hard coal in the furnaces which passed through the hops to dry them. Sulphur was burned which turned the hops a golden colour.
After the hops were dry they were placed on the cooling floor and later put into a sack, known as a pocket, and compressed using the hop press.
The hop pocket suspended below the hop press.
There are various items on the ground floor including hop sprayers and an alley bodge. There is also a wim-wom used for holding the string and a post war Ferguson tractor.