Made primarily from vegetable oil and cornstarch, the bags begin to break down at about the same rate as other vegetable material when micro-organisms from organic matter are present, leaving no harmful chemicals or residues.
The bags hold 3 gallons (10 litres); we suggest changing bags every 3 to 5 days. Not to be confused with so-called biodegradable plastics that merely break down into tiny plastic pieces and remain in the soil for years.
(Check with your municipality – not all accept these bags for curbside compost pick-up.)