However , glass containers presented challenges for transportation .
The reason for lack of spoilage was unknown at the time , since it would be another 50 years before Louis Pasteur demonstrated the role of microbes in food spoilage .
Glass containers presented challenges for transportation .
The reason for lack of spoilage was unknown at the time , since it would be another 50 years before Louis Pasteur demonstrated the role of microbes in food spoilage .