Map Point 7 Right. A little peek into Stone Barn Oast. In the past these round buildings or kilns were used all over Kent to dry the hops used in traditional British beers, giving the characteristic bitter taste. Most of these buildings have now been converted into very desirable houses. Its been a long time since hops dried here, it used to be used as a farmers store house. It lay derelict for many years and has recently been rebuilt from just above the ground up.