The three IS machines in the Gerresheimer factory in the Chicago suburb of Chicago Heights produce 750,000 bottles daily – 750,000 orange-glowing pieces of glass that are cooled, checked, packed into small loads, wrapped, and finally stacked onto shipping pallets. Depending on bottle size, which varies here between five milliliters and 1.0 liters, at the end there are 500–35,000 bottles on one pallet.
Gerresheimer's transition from wooden to recycled-plastic pallets can be attributed to a proactive approach: They wanted to spare their clients the expensive step of reloading glass from wooden pallets onto their own clean plastic pallets with every load. That is because many of the bottles go on to clients in the pharmaceutical industry, which has the highest hygienic standards and cannot afford to allow any wood or the problems that come with it (dust, fibers, bugs, etc.) into its supply chain.