Sport Water Bottle (tritan)

Material Composition Assumptions

This assessment covers sport water bottles manufactured from Tritan copolyester, a BPA-free plastic commonly used in premium reusable bottle brands. The typical bottle weighs approximately 200 grams and consists of the following components:

• Tritan copolyester body: 150g (75%)
• Plastic cap and lid assembly: 30g (15%)
• Silicone sleeve or grip elements: 15g (7.5%)
• Stainless steel or plastic hardware: 5g (2.5%)

The Tritan material provides durability and chemical resistance while maintaining clarity and impact resistance comparable to polycarbonate alternatives. Optional components such as carrying straps or measurement markings contribute minimally to the overall material footprint.

Manufacturing Geography

Primary manufacturing occurs in China, which dominates global plastic bottle production due to established supply chains and processing infrastructure. The Chinese electricity grid operates at an average intensity of 555 gCO2/kWh, significantly influencing the carbon footprint of energy-intensive processes like plastic polymerization and injection molding.

Chinese facilities benefit from economies of scale and proximity to petrochemical feedstock sources, though the coal-heavy electricity mix increases emissions compared to regions with cleaner grids. Manufacturing consolidation in this region also affects transportation distances to global markets.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2/kWh	35	Baseline
European Union	275 gCO2/kWh	28	-20%
United States	385 gCO2/kWh	32	-9%
India	650 gCO2/kWh	38	+9%
Nordic Countries	85 gCO2/kWh	22	-37%

Provenance Override Guidance

Suppliers can provide the following data types to override the default CCI score:

1. Detailed material composition with specific Tritan grade and additive content
2. Manufacturing facility location with verified electricity consumption and grid mix data
3. Transportation modes and distances from production to distribution centers
4. Actual production energy consumption per unit with breakdown by process step
5. End-of-life recycling rates and treatment methods in target markets

Methodology Notes

• The CCI score represents cradle-to-grave emissions including material production, manufacturing, distribution, use phase washing, and end-of-life treatment
• Scope 3 emissions dominate due to upstream material production and downstream use patterns
• Functional unit assumes 500 uses over typical product lifetime with bi-daily washing cycles
• Excludes packaging materials, retail storage, and consumer transportation to purchase location
• Use phase washing assumes energy-efficient dishwasher operation rather than hand washing
• Regional recycling infrastructure variations create uncertainty in end-of-life impact calculations
• Data gaps exist for emerging bio-based Tritan alternatives and closed-loop recycling programs