Jewish law forbids embalming for traditional burials, which it considers to be desecration of the body. The body is ritually washed by select members of the Jewish community, wrapped in a muslin sheet, and placed in an all-wood casket. The casket must not have any metal in it, and it often has holes in the bottom to ensure that it and the cadaver rapidly decompose and return to the earth. Burial vaults are not used unless required by the cemetery. In Israel, Jews are buried without a casket, in just the shroud.
Islamic law instructs that the deceased be washed and buried with only a wrapping of white cloth to preserve dignity. The cloth is sometimes perfumed, but as in natural burial, no chemical preservatives or embalming fluid are used, nor is there a burial vault, coffin or casket. Coffins are used, however, in countries such as the UK, where the law requires it.