HOW MANY MUSHROOMS ARE GROWN IN THE UNITED STATES
Conditions vary from year to year, and no accurate estimate is available as to how many pounds of mushrooms are grown in the United States. We manufactured and sold enough spawn last season to grow 2,000,000 pounds of mushrooms, the output of the year having increased by 100,000 bricks over the previous year.
This does not mean that new growers have come into the field, but, rather, the discarding of poor or unreliable spawn by old growers has been general.
It would therefore be reasonable to conclude that from four to five million pounds of fresh mushrooms (aside from field-grown) are now used annually in the United States.