At Engel & Gray, Inc. Regional Compost Facility we follow a very strict criteria when
manufacturing Harvest Blend Compost. We are a fully permitted facility that follows
all County, State and Federal EPA regulations. These regulations exist to ensure that
only safe and environmentally beneficial compost is produced. Harvest Blend
Compost is manufactured using the aerobic (oxygen requiring) windrow method.
When the ingredients are mixed, the temperature begins to naturally rise because of the
microbial activity within the windrow. During this active composting period, the
compost enters a high temperature phase that sanitizes the product and allows a high
rate of decomposition . Once the temperature rises above 131 Degrees Fahrenheit it is
kept above that temperature and the windrow is turned at least five times over the next
fifteen days to ensure that all material is heated. Temperatures are monitored daily to
document the process. This heating not only breaks down the organic material, it
sanitizes the ingredients, destroying pathogens and weed seeds that may be present.
This phase is then followed by a lower temperature phase that allows for the product to
stabilize while still decomposing at a lower rate.
Engel & Gray, Inc. then ages, or cures, Harvest Blend Compost to further stabilize the
soil amendment.
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