Over the years I have stressed enough about first off placing worm castings in plastic bags as you render them useless for the castings contain beneficial aerobic microbes which require oxygen to survive. I have also stressed in the past the proper way to store worm castings since the beneficial microbes require certain temperatures to survive. Just for example some of the microbes in our worm castings survive at approximate range of 70-100 degrees Fahrenheit.
So this brings me to a valid point of shipping worm castings in extreme heat but more importantly cold winter temperatures.
The cargo holds on planes and the trucks utilized for transporting the worm castings are not heated or air conditioned hence are reliant on the ambient temperature at the time they are being shipped. It does not take long for the water content in worm castings to freeze hence killing off the beneficial aerobic microbes as well. The castings do not even need to freeze but rather drop to low in temperature will make them useless.
I always forget or become distracted to write this article however when shipping or purchasing worm castings it is vital for maximum potential that they be shipped with heat packs. Here at Organic Worm Farm, we ship all our worm castings with a 72 hour heat pack being Priority Mail is a two to three day service.
So if you are shipping worm castings, be sure they are in a breathable bag and you include a 72 hour heat pack. If you are looking to purchase worm castings, be sure to do so from a reputable worm farm that treats your worm castings as if they were for their own personal use!
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