Cereals, which experience enzymatic fat oxidation, have Q10's of about 2, while low fat cereals with no enzyme activity have Q10's of about 3. Tomato powder experiences non-enzymatic browning that has a high activation energy and, therefore, has a 10 of 4 or more. The word "about" as used above is important as these values can vary somewhat for the same product produced on different days or in different plants. As can be seen from Table 3, a small difference in the value of Q10 can make a rather large difference in the shelf-life projection. For instance, a product which lasts 10 weeks at 100°F and has a Quo of 1.5 would last 20 weeks at 70 °F. A difference in the Q10 of 0.5 would shift the shelf life from 20 weeks at 70°F to 32 weeks at that temperature, a 60% difference.