Compost Testing Labs

Since growing conditions and plant requirements vary, compost users can greatly benefit from information that accurately characterizes the compost products they use.  This data can improve the utilization of compost in ways to best meet particular needs and to fit a specific situation.  The specific characteristics of a compost product determine how, and in which applications it can be best utilized.  Characterization data helps the compost user obtain product that is appropriate for use with their project or application.

The importance of product testing can not be over emphasized.  A number of labs around the country, which can provide an analysis of your recycled organic product, have been identified and put in a searchable database below. You can search the database by different criteria, such as Company Name, City, State, and/or Keyword.  Please remember to clear your previous search prior to starting a new search.

You may also want to consider the U.S. Composting Council Seal of Testing Assurance Program to evaluate compost quality.