A system (200, 300, 400, 500) for creating a braze joint, the system (200, 300, 400, 500) comprising: an environment operable to reach a braze temperature sufficient to melt at least a portion of a braze material; a component within said environment, said component comprising: a base comprising a base surface; a recess depending from said base surface into said base to an inner edge; and being characterised: said braze material within said recess and forming a cap above said base surface, said braze material filling said recess from said cap to said inner edge, said cap having an exposed braze surface; an insulation layer at least partially covering said exposed braze surface; and a cooling device operable to extract heat from a location on said base, said location being closer to said inner edge of said recess than to said cap, so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge, while having less effect on a first portion of braze material located near the cap. an environment operable to reach a braze temperature sufficient to melt at least a portion of a braze material; a component within said environment, said component comprising: a base comprising a base surface; a recess depending from said base surface into said base to an inner edge; and being characterised: said braze material within said recess and forming a cap above said base surface, said braze material filling said recess from said cap to said inner edge, said cap having an exposed braze surface; an insulation layer at least partially covering said exposed braze surface; and a cooling device operable to extract heat from a location on said base, said location being closer to said inner edge of said recess than to said cap, so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge, while having less effect on a first portion of braze material located near the cap. a base comprising a base surface; a recess depending from said base surface into said base to an inner edge; and being characterised: said braze material within said recess and forming a cap above said base surface, said braze material filling said recess from said cap to said inner edge, said cap having an exposed braze surface; an insulation layer at least partially covering said exposed braze surface; and a cooling device operable to extract heat from a location on said base, said location being closer to said inner edge of said recess than to said cap, so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge, while having less effect on a first portion of braze material located near the cap. said braze material within said recess and forming a cap above said base surface, said braze material filling said recess from said cap to said inner edge, said cap having an exposed braze surface; an insulation layer at least partially covering said exposed braze surface; and a cooling device operable to extract heat from a location on said base, said location being closer to said inner edge of said recess than to said cap, so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge, while having less effect on a first portion of braze material located near the cap.