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|Drying Technique||Freeze Drying|
By using mostly green energy for the processing steps, our process now is climate positive! You can see all steps and emissions in our analysis below. We don’t want to be the butcher that inspects his own meat; our calculations are under review by LCA experts.
is the amount of veggies saved
is the amount of CO2e that would be emitted if we didn’t save those veggies
is the amount of CO2e that we emitted during processing the vegetables to delicious soups
Step 1: Saving the Vegetables
The first step in the process is saving the vegetables from becoming landfill and therefore food loss. Thrown away food emits up to 1.9 kg CO2 and burned food about 0.95 kg CO2 per kg food. Half of the batch would end up as landfill and the other half would be burned for energy. By saving 3493 kg food (counting cutting loss) we saved about 4978 kg CO2.
Step 2: Transport
During the process, the products are transported between production and processing sites. Our cooled bus emits a small amount of CO2 per kilometer. In total the products traveled about 700 km with an emission of 0.18 kg CO2 per km:126 kg CO2.
Step 3: Steaming and Mashing
After being cut into smaller pieces, the pretreated vegetables are steamed and mashed into pulp. This step in the process prepares the products for the drying step. As this step was also quite energy consuming, we’re happy to say we are using 100% green energy. Therefore we emit 0 kg CO2!
Step 4: Freeze drying
The pulp is now dried with a technique called freeze drying. By using mostly renewable energy, the CO2e-emissions are lowered significantly to 0.41728 kg CO2e per kg. About 3493 kg pulp is freeze dried, emitting 1,168 kg CO2e. Compared to our previous batch, this is a reduction of about 85%!
Step 5: Grinding
Now the dried product is grinded into powder before mixing and bagging. Grinding the products are estimated to emit 0.5 kg CO2 per kg. At this point the mass is reduced significantly by removing water. About 386 kg products are now grinded emitting 193 kg CO2.