Knife Block Set

Kitchen
Medium Confidence

Carbon Cost Index Score

42 kgCO₂e / per unit

Per kg

21 kgCO₂e / kg

Methodology v1.0 · Last reviewed 2026-04-08

Scope Breakdown

Scope kgCO₂e % of Total Distribution
Scope 1 2.1 5%
Scope 2 6.3 15%
Scope 3 33.6 80%
Total 42 100%

Emission Hotspots

Emission Hotspot Scope Est. % of Total
stainless steel blade production S3 68%
wood block or handle materials S3 15%
manufacturing and assembly S1 10%
packaging and transportation S3 7%

Manufacturing Geography

Region
China, Germany, Japan
Grid Intensity
531 gCO2/kWh (China national average, IEA 2023)

Material Composition Assumptions

A typical knife block set contains approximately 1,800 grams of total materials distributed across multiple components. The stainless steel blades represent the primary material input at roughly 1,200 grams or 67% of total product weight. The wooden block, commonly constructed from oak or walnut timber, accounts for approximately 450 grams or 25% of the overall mass. Handle materials and metal components contribute an additional 100 grams representing 6% of the product. Packaging materials including cardboard and protective wrapping constitute the remaining 50 grams or 3% of total weight. Alternative configurations may substitute carbon steel for certain blade types or incorporate recycled steel content to reduce environmental impact.

Manufacturing Geography

Production concentrates primarily in China, Germany, and Japan due to established steel processing infrastructure and specialized knife manufacturing expertise. Chinese facilities benefit from integrated supply chains but operate with higher grid carbon intensity at 531 grams of carbon dioxide equivalent per kilowatt-hour. German manufacturers leverage advanced low-carbon steel production technologies supported by renewable energy integration in industrial regions. Japanese producers emphasize precision manufacturing with moderate grid intensity levels. The concentration in these regions reflects proximity to raw material suppliers, skilled workforce availability, and established distribution networks for global markets.

Regional Variation

Manufacturing RegionGrid IntensityEstimated CCI ScoreAdjustment vs Default
China531 gCO2/kWh42Baseline
Germany366 gCO2/kWh37-12%
Japan462 gCO2/kWh40-5%
South Korea436 gCO2/kWh39-7%
United States386 gCO2/kWh38-10%

Provenance Override Guidance

  1. Steel production method documentation including recycled content percentage and furnace type specifications for blade manufacturing processes.
  2. Energy source verification covering renewable electricity usage and grid intensity data for primary manufacturing facilities.
  3. Material composition certificates detailing exact steel grades, wood species, and alternative material substitutions used in product assembly.
  4. Transportation logistics including shipping distances, modal split data, and packaging material specifications for distribution activities.
  5. Manufacturing process efficiency metrics including yield rates, waste generation, and energy consumption per unit produced.

Methodology Notes

Related Concepts

Sources

  1. Outokumpu 2025 Stainless Steel Carbon Footprint Report — Documents significant emissions reduction potential through low-carbon production methods in stainless steel manufacturing.
  2. World Steel Association 2023 Manufacturing Report — Quantifies energy savings achievable through increased recycled content in steel production processes.
  3. ISO 14067:2018 Carbon Footprint of Products — Provides standardized methodology for measuring carbon footprints across product lifecycle stages.
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