When choosing tarps for stockpiles, keep in mind that
white-on-black tarps are best at keeping an even temperature
in the stockpile, which minimizes condensation.
Research shows that tarp type/color can play an important role in minimizing temperature fluctuations and condensation in stockpiles, which lead to mold growth. Of particular concern in the outer portions of stockpiles are the “green molds,” which include the Aspergillus
mold that produces aflatoxin.
White on black is best at minimizing temperature fluctuations and the resulting condensation. Consider using this for piles with higher moisture content in-hull product. Clear produces the highest temperature fluctuations, but is fine for dry in-hull product. White is intermediate between clear and white-on-black.