CouleurCafe Senior Member Joined: 3 Jan 2005 Posts: 68 Location: SF, CA Expertise: I love coffee
Posted Mon Jan 31, 2005, 12:01pm Subject: Guidelines for freezing roasted coffee?
Josuma sells roasted Malabar Gold in 1lb bags. The minimum order is 5lbs. They roast on Monday, ship UPS on Tuesday and it should get to my door on Wednesday.
I was thinking that I could order 5lbs, freeze 4 bags without opening them. Each bag would get thawed overnight before opening.
How would this impart freshness? Would 48hrs post-roasting be too late for freezing?
Posted Mon Jan 31, 2005, 12:44pm Subject: Re: Guidelines for freezing roasted coffee?
Freezing is bad. All those beautiful oils in the coffee gets completely destroyed by freezing. But if you have to do it, I guess as long as it's within the freshness period(10 days or so).
CouleurCafe Senior Member Joined: 3 Jan 2005 Posts: 68 Location: SF, CA Expertise: I love coffee
Posted Mon Jan 31, 2005, 1:45pm Subject: Re: Guidelines for freezing roasted coffee?
Guess I should have made myself clear.
I am after the best convenience/quality/price "ratio".
Not interested in home roasting.
What I was looking for was some kind of article where experts would have done blind tasting of frozen vs. fresh coffee with several variable explored (time aster roasting, time frozen, freezer temp, ...).
Posted Mon Jan 31, 2005, 1:46pm Subject: Re: Guidelines for freezing roasted coffee?
I use vacuum freezing with excellent results.
There is not a consensus regarding freezing beans among the experts. Some say it's fine, others say never do it. What it comes down to is whether it works for you.
I've had mixed results when simply putting valve bags in the freezer, which is why I now use canisters and vacuum freeze. I've done this for as long as 6 weeks with very little if any perceptible (by me) staling of the beans. Your mileage may vary.
Posted Mon Jan 31, 2005, 1:49pm Subject: Re: Guidelines for freezing roasted coffee?
The beans will not stale, you are correct. However, with my personal testing, I notice the nuances of the coffee disappear with freezing as the oils are destroyed. Of course, I only brew press pot where the oils make it into the finished product. So, naturally, I would notice something like that. With a filter drip using a paper filter, you'll more then likely not notice.
CouleurCafe Senior Member Joined: 3 Jan 2005 Posts: 68 Location: SF, CA Expertise: I love coffee
Posted Mon Jan 31, 2005, 3:12pm Subject: Re: Guidelines for freezing roasted coffee?
cexshun Said:
The beans will not stale, you are correct. However, with my personal testing, I notice the nuances of the coffee disappear with freezing as the oils are destroyed. Of course, I only brew press pot where the oils make it into the finished product. So, naturally, I would notice something like that. With a filter drip using a paper filter, you'll more then likely not notice.
Why would freezing destroy the oils? Is there any physical chemistry sense to that?
Again, blind cupping by experts would be the gold standard. I like the method that Ukers used in the link I posted: brew reference points by brewing a mix of stale and fresh and compare your experiment to that. Beautifully simple.
I am starting to brew espresso and oils do matter.
Posted Mon Jan 31, 2005, 3:22pm Subject: Re: Guidelines for freezing roasted coffee?
I've found countless websites that also make this claim. Sadly, none can provide chemistry to back it up. I'd be curious to see this as well. All I know is that my personal testing tells me one thing. Your mileage may vary.
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