The standard deviation of the process is 0.25%.

The accepted norm of the moisture content ranges between 6% to 8%.

The close monitoring of step 4 revealed that the company is frequently facing problems with the moisture content of the tea mixture. In that sense, several quality checks are performed (step 4) moisture content, bulk density, dust content and sensory testing. Quality checks (quality at the source), and to report any defects they discover to their supervisor. Employees are responsible for performing in-process Training is incorporated on-the-job so that employees can see the practical applications of what they are learning. Employees are trained in quality concepts and the use of quality tools. The final product is then moved to the packaging stage. The blend is then moved to one of the production lines to be processed. The blend is then moved to the main tanks according to the type of the blend. In the sample tank, samples are taken to do some quality checks. The blend then is moved to the sample tank. The mixing stage starts which includes a magnet, mesh and a mixing drum to guarantee the homogeneity of the blend. After the raw tea is dispatched, the certified tea tasters start to propose the needed blend of tea and then the blend preparation starts. The warehouse dispatches the raw tea after receiving the production order. The production processes for the different types of tea produced are as follows: 1. Line 4 could produce all the different types of tea. Line 6 is used to produce the dust while line 7 is used to produce the CTC. Line 5 is used to produce tea bags as well (but the 10 pack). Line 1,2 and 3 are used to produce tea bags ( 100,50 and 25 packs). As previously mentioned, there are 7 production lines that are used to produce the 5 different types of products produced by XYZ. Generally, production in XYZ company could be considered as a batch processing that provides quite high volume and quite acceptable variety of output.

Sample tank 4