One boiler horsepower of steam capacity is sufficient to ...

[RRMR]

One boiler horsepower of steam capacity is sufficient to pasteurize _____ cubic feet of root substrate per hour.
 
  Fill in the blank(s) with correct word

Question 2

Why is aerated steam preferred to steam taken straight from the boiler?
 
  What will be an ideal response?

[ASDFGJLO]

Answer to Question 1

6

Answer to Question 2

Aerated steam enables the root substrate to be pasteurized at a lower
temperature, usually 140-160oF rather than 212oF. The aerated steam temperature
is sufficient to kill the harmful organisms but allows more of the non-pathogenic
organisms to survive. The presence of non harmful organisms reduces reentry of
harmful organisms.

[RRMR]

Gracias!

[amandanbreshears]

Excellent