I just watched an employee mix old food stock with new batch. The old batch clearly appeared to be sitting a while. I request and willing to wait to get a fresh batch. After watching the employee mix the batches together. I requested to take a sample from another dish option. The employee replied this is what we do mix the food stock & refused to allow a sample taste. The only thing I could do was walk out the store because I would have likely said some very bad words after what I saw.