The choice of material for PET moulds directly correlates with the performance of the end product. For instance, moulds made from aluminum may cause quicker production times, but they may also result in a higher risk of defects in the final packaging. Conversely, while steel moulds may take longer to produce, their durability ensures that they can return value over time through consistent, high-quality output. Therefore, the context of use, such as the type of pet food being packaged and the anticipated production volume, should guide the decision on which material to utilize for PET moulds.