C&A Pottery makes ceramic vases using a process that involves forming, drying, firing, and glazing. The 5 workers each takes on average 60 minutes to form a vase. The vases will then be loaded into an oven to dry. The oven can hold up to 100 pieces and it takes 5 minutes to load each vase. Once all the vases are loaded into the oven, it takes 24 hours to dry each load. The dried vases are then placed in a kiln that holds up to 100 pieces. It takes 6 minutes to load each vase and the vases will be fired in the kiln for 72 hours. After firing, 3 workers each take an average of 2 hours to glaze each vase. C&A receives an order of 1 vase per hour. What is the smallest batch size to ensure the process is demand-constrained?