Energy Use in the Food Sector: A data
Energy Use in the Food Sector: A data
Energy Use in the Food Sector: A data
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
fish<strong>in</strong>g appears less efficient with 0.077-0.29 litres of fuel used per kg of fish caught.<br />
However, energy for produc<strong>in</strong>g <strong>in</strong>puts such as fertilisers dur<strong>in</strong>g crop production is not<br />
accounted for <strong>in</strong> that comparison.<br />
Table 13, Appendix 5, has two examples of <strong>in</strong>puts <strong>in</strong> aquaculture. It is worth not<strong>in</strong>g that <strong>the</strong><br />
efficiency of feed conversion rate <strong>in</strong> <strong>the</strong>se examples – 2.1-2.8 kg of feed per kg of fish – is<br />
much less efficient than <strong>the</strong> figures presented <strong>in</strong> Table 11, Appendix 3. Age of <strong>data</strong> may be<br />
one explanation for <strong>the</strong>se differences.<br />
3.5 <strong>Food</strong> Process<strong>in</strong>g and <strong>Food</strong> Preparation<br />
<strong>Food</strong> process<strong>in</strong>g and preparation requires resources such as energy, water and materials.<br />
Appendix 6 has <strong>data</strong> on energy use for various types of food process<strong>in</strong>g and preparation<br />
organised as follows: 9<br />
1. <strong>Food</strong> process<strong>in</strong>g<br />
• Baby food (Table 1.1)<br />
• Bread etc. (Table 1.2)<br />
• Breakfast cereals (Table 1.3)<br />
• Cann<strong>in</strong>g etc. (Table 1.4)<br />
• Chips (Table 1.5)<br />
• Chocolate (Table 1.6)<br />
• Coffee (Table 1.7)<br />
• Dairy products (Table 1.8)<br />
• Dry<strong>in</strong>g, energy per unit of water evaporated (Table 1.9)<br />
• Dry<strong>in</strong>g, energy per unit of dry crop (Table 1.10)<br />
• Freez<strong>in</strong>g and cool<strong>in</strong>g (Table 1.11)<br />
• Ice cream (Table 1.12)<br />
• Juice (Table 1.13)<br />
• Meat (Table 1.14)<br />
• Mill<strong>in</strong>g and polish<strong>in</strong>g (Table 1.15)<br />
• Oil extraction and ref<strong>in</strong><strong>in</strong>g (Table 1.16)<br />
• Pasta (Table 1.17)<br />
• Peel<strong>in</strong>g (Table 1.18)<br />
• Soft dr<strong>in</strong>ks and alcohol (Table 1.19)<br />
• Sugar and Candy (Table 1.20)<br />
2. <strong>Food</strong> preparation<br />
• <strong>Food</strong> preparation <strong>in</strong> households (Table 2.1)<br />
• <strong>Food</strong> preparation <strong>in</strong> restaurants and <strong>in</strong>dustries (Table 2.2)<br />
• <strong>Food</strong> preparation: <strong>the</strong>oretical values based on producer <strong>in</strong>formation (Table 2.3)<br />
The ra<strong>the</strong>r large number of observations about energy use for bread mak<strong>in</strong>g (31) give<br />
possibilities for discuss<strong>in</strong>g variations <strong>in</strong> energy <strong>in</strong>puts for this process. There are eight<br />
observations of bread mak<strong>in</strong>g where <strong>the</strong> only reported energy <strong>in</strong>put is electricity. <strong>Energy</strong> use<br />
<strong>in</strong> <strong>the</strong>se examples varies between 1.53-4.56 MJ per kg of bread. Two observations of energy<br />
use for bak<strong>in</strong>g bake-off baguettes at a retailer show energy uses between 1.22-1.87 MJ per kg<br />
of bread. To obta<strong>in</strong> <strong>the</strong> complete picture of energy use for bak<strong>in</strong>g, figures on energy use for<br />
pre-bak<strong>in</strong>g those products must also be added, but no such <strong>data</strong> are presented here. As bake-<br />
9 <strong>Energy</strong> use is given as process energy.