I will only say this, my daughter heard that Twinkies could last forever in their crinkly cellophane wrapping and she thought she would try that out. However she took it out of the wrapping and put it on a plate. It sat on her desk in her bedroom for 6 months. The sponge was completely hard and when she cracked it open the cream was cracked and drying.
The most interesting thing was that in 6 months there was absolutely no mould. There is something seriously wrong with a food that doesn't grow mould. Hope that strengthens your resolve. lol.
Highest weight October 1st, 2011 247.6
Starting weight January 3rd, 2012 227.8
January pounds lost 7.8 = 220
February pounds lost 4.4 = 215.6
March pounds lost 2.6 = 213 (do better in April)
Goal weight 160.4