30-Inch Farmhouse Fireclay Sink with Shabby Sugar Finish Part of our Vineyard Collection, this sink has an artistic finish to create a distressed look with plenty of depth and character.5. Its glazed surface inhibits bacterial growth more than stainless steel. * A note about fireclay: small cracks will appear on the unglazed underside of the sink, these are cosmetic only and have no impact on the performance of the sink.