*Cups biodegrade 92% over 4 years, lids biodegrade 86.8% over 7.9 years, straws biodegrade 88.5% over 7 years. Tested under conditions that simulate both wetter and biologically active landfills using the ASTM D5511 test. Wetter or biologically active landfills may not exist in your area. The stated rate and extent of degradation do not mean that the product will continue to decompose.