Assignment #2 After Crest toothpaste had been on the market for some time, Proctor & Gamble, is the manufacturer, decided to offer a mint-flavored version in addition to the original, wintergreen-flavored product. In the course of developing the new mint-flavored product, a test batch of mint-flavored product was produced by the same pilot unit used to produce wintergreen-flavored product. The pilot equipment used a tank and impeller device to mix the mint-flavored essence with the rest of the ingredients to form the finished product (which is a very viscous solution). Some of the pilot plant product was packed into the familiar collapsible tubes for further testing. Tubes used is testing the mint flavor were identical to those used for the wintergreen-flavored product. In the packing operation, toothpaste was pumped through lines into the unsealed ends of brand-new tubes. After filing the open tubes ends were heat-sealed. To assess storage stability, some of the filled tubes were randomly separated into several groups and each group was stored in a constant-temperature room. Storage temperatures varied from 40F to 120F. Early sampling of the mint-flavored product showed nothing unusual. However, several months into the test, a technician preparing to test the product from one of the stored tubes noted that the first 0.25 inch of paste squeezed onto a toothbrush was off-color. The rest of the product in the tube met the color specifications. Nothing like this had ever been seen with the original formula. Further testing showed that a person had to squeeze more product out of those tubes that had been stored at higher temperatures and/or stored for longer times before a product that met the color specifications would exit the mouth of the toothpaste tube. Tubes stored for a period of time at 400F contained no off-color product, whereas tubes stored for the the same length of time at higher temperatures produced off-color paste. Linea/Spring 2020 UBT Ch5. Problem Definition SEITE Assignment #2 The only exception to these results was a single tube, which had been stored at a temperature above 40'F A leakage of off-color product was found around the base of the cap on this tube, but the product inside the tube met the color specifications While other tests showed the off-color product to be safe and effective in cleaning teeth, consumers certainly would not accept a color change in a product expected to have the same color from the first squeeze to the last. Moreover, such a change could have been an early warning of more serious problems to come. This phenomenon had to be understood and eliminated before the new flavor could be marketed. Accordingly, various possible remedies were tested: caps and tubes made of different materials, different mixing methods, and so forth. None of these changes had any effect on the off-color problem. All raw materials, including the new mint-flavor essence, were checked and found to meet specifications. A subsequent batch of the wintergreen product was made and tested for storage stability and, as usual, no off-color problem occurred. Carry out a K.T. problem analysis to learn the cause of the off-color toothpaste