Paper bags are less expensive to process and can increase the quality of the compost.

The presence of foreign matter (inorganic contaminants) affects the quality of the compost, especially its appearance, and therefore its marketing. More specifically, plastic bags have an impact on the quality of the compost, for the removal of plastic fragments is imperfect, and even certified compostable plastic bags can leave up to 10% of residuals (after 84 days of composting).

  • Scientific advances in Germany in measuring foreign matter content in composts have found that as little as 0.25% plastic residue is visually objectionable (Verband der Humus- und Erdenwirtschaft (German Council of Humus & Soil Producers), 2014).
  • The removal of plastic bags is a solvable engineering exercise, though it adds some operational costs in the form of additional upfront processing needed (mechanical and/or manual pre-sorting), residual screening and disposal (potentially higher reject rate).
  • Partially degraded compostable plastic bags can’t be distinguished from other plastic in compost and will thus be treated as rejects.
  • Fully compostable, paper bags generate no visible residue.
  • Easily recognizable, paper bags do not cause confusion among consumers.
  • Absorbing liquids, paper bags stick to organic matter and do not fly away in a composting site.

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BAG TO EARTH paper food waste bags are now available through our web store

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Natural Products Expo (March 10 - 12, 2017)

BAG TO EARTH is exhibiting at Expo West in California. Make sure to visit our booth!