A Bronze Age salt production technique from Transylvania and western Ukraine

Across prehistoric Europe several techniques were used to produce salt, including solar evaporation and the briquetage method. Here, authors focus on a third technique in Romania western Ukraine. Building excavations at Băile Figa series of wooden troughs found there, conduct experiments elucidate how these objects may have been salt production: drip water onto rock surfaces break them up; or filter and/or concentrate brine by decanting heating. The results demonstrate are ineffective concentrating brine, but highly efficient breaking up cleaning insoluble impurities.