Analysis of the silver foil of freshness

For the silver foil of freshness that keeps my coffee dry
For the broken golden bottle top that kept the ale fine
For the lid upon the butter tub
For all things vacuumed packed
For needless plastic wrappings and little food bags
For the fridge
The freezer
And the flask
For the tuppaware too
For ice
For brine
For the right appliance
For cryogenics too
Formaldehyde
For U.H.T
For jars of pickled fruit
For preservation
Conservation
And permanence in food