Mature

Regular 
Causes any foodstuff that must age and mature as part of its production to do so more quickly. This is most often used with beer and wine, but it can also be used to accelerate cheese, yogurt, bread dough, or even meat. 
Aging processes that normally take days or weeks (beer, wine, aged cheese, pickles, dry-aged meats) take only an hour with this spell. Processes that normally take hours (bread dough, yogurt, fresh cheese) take only a minute. Processes which take years (vintage wines, thousand-year eggs) accelerate a year for every casting of the spell... this is a wonderful way to discover whether a particular vintage will age well.

Duration: The process takes an hour (or a minute, as above), but the food remains mature permanently. 
Cost: 1 per pound of food. Cannot be maintained. 
Time to cast: 10 seconds. 
Prerequisite: Decay or Season.

Item 
A small keg that works at no energy cost to the user, but only works a limited number of times per day. 
Energy cost to create: 50 per gallon of size, per each time/day the item is usable. For example, a 10-gallon keg that works twice per day costs 50x10x2=1,000 energy to create.