If a grower wants to buy Dutch shelves to grow mushrooms on, he has two choices of material. The first is galvanised steel, and the second is aluminium. It has always been a fact, and all growers know this, that aluminium is the more expensive of the two choices. That, according to Bob Holtermans of MushComb in Horst, The Netherlands, has changed.
According to the U.S. Department of Agriculture about 809 million pounds (367,73 million kilograms) of U.S. grown mushrooms were sold in the USA in the 2007-2008 season. This is 2% fewer than in 2006-2007 and 4% fewer than in 2005-2006.