Master Composter Class

Master Composter Certification Class

Become a certified master composter in Washtenaw County! Learn all about composting - from backyard composting, vermiculture (worms!), compost tea, and soils. Take a guided, technical tour of the Ann Arbor Municipal compost operation and receive a comprehensive binder of class and composting reference materials. A take home quiz is worked on collaboratively. Michigan Master Composter certification is available for students who pass the take-home exam and complete at least 10 volunteer hours in the community. 

The Master Composter Certification class is collaboratively organized by Project Grow, Washtenaw County and the Ann Arbor Public Schools (AAPS) Recreation and Education Program. 

2020 Class Information

Due to the Covid-19 interruption of hands-on classroom instruction, the Michigan Master Composter Certification class will not be offered in 2020 in Washtenaw County. 

The instructors hope to resume in Fall 2021, again via Ann Arbor Public Schools Recreation and Education, held at Pioneer High School. Past years’ classes have taken place Sept-Nov on Wednesday evenings, with registration opening in August.

If individual online composting classes are offered in the interim, they will be posted on this website and also promoted through the partner organizations.

In the meantime, please consult the composting resources linked to this county Web page.

Not sure if the class is right for you? View the 2019 class flyer 


For Current & Former Students

Local Volunteer Opportunities (PDF) 

Project Grow website
Woman in garden empties food scraps into compost bin
Master Composter classroom action