If a food product is left out on the counter and contains 2 viable food infection type microorganism, how much time elapses before the food becomes unsafe for consumption? the average lag phase genera

If a food product is left out on the counter and contains 2 viable food infection type microorganism, how much time elapses before the food becomes unsafe for consumption? the average lag phase generation time is 90 minutes and the average log phase generation time is 10 minutes. three generation times (16 microorganisms) are required for the system to switch from the lag to the log phase. for this particular microorganism, the number of microorganisms considered unsafe for consumption is 6,000.