A few things to keep in mind...
1
) Ground coffee will only stay fresh for about a month anyway, so it's best not to buy more than you can consume in a month. All the extra surface area allows the oils to evaporate faster than they would with a whole bean. I'm going to figure a guess that most of us do not buy whole, green coffee beans. That's the way to buy "great" coffee. Any thing beyond that is on it's way to becoming stale anyway.
2
) When you roast the beans, they give off CO2 in contact with air
(acutally, the 20.9% that is Oxygen
), so air-tight containers are a plus. Even better is to put them into an airtight container with a one-way valve that lets the CO2 out and does't let the O2 in. So by not using pre-ground coffee, you extend the few weeks to a few months.
3
) Freezing foods can extend their freshness, but it is important not to let the main container of food thaw out and then refreeze it. This goes for any food, not just coffee. The first time you thaw it out, you'll add some water from the condensation, and when it refreezes
(remember, water is the only substance that expands below it's freezing point
), the ice it makes produces tiny little prickly things that destroy the cellular structure of whatever you are freezing -> freezer burn.
4
) Most consumer freezers don't do a really great job of limiting the moisture in the freezer, so if you don't use an airtight container, you can add enough moisture to freezer burn whatever you are storing. Plus, that moisture can carry the flavor of whatever else is in your freezer into anything else that is not airtight.
5
) The truth is... How many of us buy green, unground coffee beans that we roast and grind ourselves? If not, don't sweat the lettuce...
So if you're that concerned about your $10 a pound green coffee beans from Mt. Kilimanjaro, buy a little Subzero just for your coffee and keep your coffee wrapped in 4 layers of plastic wrap in an airtight container. When you need to use some coffee, bring the temperature of your kitchen to 36 degrees Fahrenheit and 4% relative humidity, take out the coffee you want, put the rest back and return your kitchen to ambient temperature and RH. Then, roast, dry, grind and perc your coffee. HMMMM, yummy. Don't forget that the darker you roast it, the more caffeine you're killing too
Thus ends our weekly reading from the book of Cliff, chapter 14, verse 8
(Cliff Claven, that is
).
Seriously, I like good coffe, but I drink it so infrequently, that I don't get too worked up about it.
-Frank
(jacka$$ of all trades, master of none
)
Edited by scuba-punk 2004-10-15 12:29 PM