Healthy Soil Guide

A concerted effort by chefs to improve the food system by supporting healthy soil. Organic matter in healthy soil enhances flavor, nutrition, water-holding capacity, and—critically—represents the soil’s role in reversing global warming. Increasing global soil organic matter by 2% would bring greenhouse gases below 350 ppm and the participating restaurants want to help spread thiis message through delicious food.

For the sake of simplicity, we have foregrounded a single metric: Soil Organic Matter. This highlights the work of farms that are doing the hard work of regenerative agriculture.

Compost Drive

PFI is conducting an ongoing compost drive to fund the purchase and application of compost to pasture land. In accordance with the Carbon Farming Protocol developed by The Marin Carbon Project, the one time application of compost and subsequent managed grazing promotes carbon sequestration through improved growth of Perennial grasses and soil biology. Their research shows that each year, one acre of rangeland can store as much CO2e (greenhouse gas equivalents) as burning 230 gallons of gasoline.

Urban Farming

Aquaponic agriculture creates a closed-loop system in which fish waste fertilizes plants grown on hydroponic rafts, while plants feed worms that in turn feed the fish. PFI's aquaponic greenhouse in West Oakland was designed as a proof of concept that aquaponics is a viable and intensive method of production that can occur in urban areas and utilize urban waste streams to power an aqua-farm and greenhouse.

This 2,000-square-foot greenhouse utilizes waste from our sister restaurant, The Perennial, and in turn provides produce and (eventually) fish back to the restaurant.