The place to find out what products work and what is in it – The Pacific Northwest Snowfighters (PNS)
As shown in the PNS Experimental Category – Approved Liquid Corrosion Inhibited Products, Beet Juice, one example (GeoMelt S) mixed at the recommended rate of 25% to a 23% sodium chloride brine, would in effect, dilute the effective percentage of brine to 15%. At the 15%, it is only effective to 22 degrees, when you follow the accepted phase diagrams for salt brine. Untreated rock salt works to 6 degrees. Dilution then makes your brine less effective. I would advise anyone looking to mix Beet Juice with their brine to review the PNS, Qualified Products List. You will find that the Beet Juice Product is only listed in the Experimental Category. This does not mean they will automatically be placed on the QPL or Qualified Product List. There is also a note explaining the dilution factor of these types of products. Calcium Chloride w/BOOST* has been on the QPL for more then six years, with an Freeze Point Depression rating of -60 F. If you are looking to an effective additive to help adhere brine to the road way, increase residual effect and add melting capacity to your brine, Consider BOOST*. For a excellent stand alone anti-ice and pre-wet product that can be applied at up to half the rate of brine. Calcium Chloride w/BOOST* is the deicer for your operation.
The PNS group is noted as being the Better Business Bureau of Liquid DeIcers, check out their website at the link above.