Table 1.
Food | Related GHG emissions commodity | kgCO2e per 100 g of commodity | Adjustment factor | kgCO2e per 100 g of food | Rationale |
---|---|---|---|---|---|
Cheese | Milk | 0.184 | 10.1 | 1.858 | 10.1 L of milk required for 1 kg semi-hard cheese (Berlin 2002) |
Orange juice | Oranges | 0.006 | 3.2 | 0.019 | 3.22 kg of oranges required for 1 kg of juice (combining natural and concentrated) (Beccali et al. 2009) |
Apple juice | Apples | 0.072 | 1.4 | 0.099 | Copella website states ‘3lbs of apples are packed into every litre of apple juice’ (Copella. Copella fruit juices. http://www.copellafruitjuices.co.uk/our-juices/juices Accessed July 2013) |
Soya milk | Soy beans | 0.201 | 0.1 | 0.025 | Recipe website suggests 160 g soy beans combined with 1.5-2 L of water (Spiciefoodie.com. Homemade soy milk. http://www.spiciefoodie.com/2013/01/14/homemade-soy-milk-or-how-to-make-soy-milk/Accessed September 2013) |
Raisins | Grapes | 0.083 | 3.2 | 0.264 | Comparison of water content in grapes and raisins in UK food composition tables (Roe et al. 2002) |
kgCO2e, kilograms of carbon dioxide equivalents (carbon dioxide has weighting 1, methane has weighting 25, nitrous oxide has weighting 298)