Green stuff, brown stuff: Secrets to a great compost pile
Summary
Science Friday host Ira Flatow interviews Cassandra Marchetto, author of *Compost After Reading*, about the science and practice of home composting. Marchetto explains the importance of balancing carbon-rich "browns" and nitrogen-rich "greens" to foster microbial activity, while advising against using tumblers in favor of simple, open bins. She offers practical tips for beginners, including proper aeration, managing odors, and utilizing municipal programs to support sustainable waste management.
Topics discussed
Sponsors and show introduction
Introduction to Cassandra Marchetto and purposeful decomposition
The science of composting: greens, browns, and ratios
What to avoid and composting in small urban spaces
Signs of successful decomposition and final product quality
Getting started: identifying everyday compostable materials
Composting equipment: tumblers vs. bins vs. open piles
Aeration, turning frequency, and monitoring heat
Worms, processing time, and municipal programs
Municipal composting and community garden support
Using finished compost to rejuvenate garden soil
Seasonal timing and composting the book itself
Common mistakes and concluding remarks
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