Copper Lining vs. Stainless Steel Inner Walls: Thermal Performance Analysis for Vacuum-Insulated Drinkware

Thermal engineer compares copper lining vs stainless steel inner walls for vacuum-insulated drinkware. Lab tests show copper reduces heat loss by 10-12%, but real-world durability studies reveal 32% failure rate after 6 months due to oxidation and delamination. Cost-benefit analysis and manufacturing complexity examined.

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