Show hay prod thermometer permits constant check to reduce danger of a barn ire fire from spontaneous ignition of hav fred roth farm safety specialist at michigan state college advises con st ruction of a simple hay prod ther dometer when hay Is stored with more than 20 per cent moisture content danger of heating in the mow is present unless a mow drier is being used even small amounts of damp hay if concentrated in one spot may cause heating in a limited area an inexpensive hay prod thermo I 1 meter consists of 10 feet reet of one halt half inch electrical conduit with an oak or ash point on one end to permit driving into the hay six one quarter inch holes should be punched in the conduit above the point A dairy thermometer on a string then is put into the conduit A rubber pad nt at the bottom of the tube will keep the thermometer from breaking |