Re: Koffie in de vriezer.

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Conclusie in het kort:
Freezing remains a viable method for the preservation of coffee roasted for espresso, for a period of at least 4 months.
La Scala Butterfly (+ Erics E61 thermometer), Mazzer Major, Gaggia Factory 106 met Tije's koelring, vier tampers (Vlak, American curve, Eurocurve), Gene Café, Aeropress, Kyocera CM-45, ROK-Grinder

Re: Koffie in de vriezer.

3
Sterker nog:
Ze vonden de koffie uit de vriezer lekkerder! :D

Iets meer dan de laatste regel:
Discussion

There are two possibilities that explain our slight preference for the frozen coffee, if indeed that preference was meaningful. The first is the more radical one that green coffee stored in a 50F basement degrades more rapidly than roasted then frozen coffee in a chest freezer. The second is that the flavor of frozen coffee, after being taken out of the freezer, peaks at a different rate than fresh coffee out of the roaster. We may have tasted when the frozen coffee was at its peak and the fresh was not.

But none of this affects the main conclusion, which is: Many things affect the taste of coffee. Freezing has an effect in the same order of magnitude as storing green coffee at room temperature, or of coffee resting in the first week after the roast. Since neither of these is regarded as particularly deletorious to the flavor of espresso, freezing should not be either. Freezing remains a viable method for the preservation of coffee roasted for espresso, for a period of at least 4 months.
Behmor 1600+, Baratza Sette 270W, La San Marco SM95A, Faema MC90, La Pavoni Europiccola, mini Gaggia, Bezzera Magica, Bosch B30

Re: Koffie in de vriezer.

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Sterker nog:
Ze vonden de koffie uit de vriezer lekkerder! :D
Nu is die conclusie ook wat te kort door de bocht! Dan moeten we dit er ook bij zetten:

"In the espresso comparison tasting, we did sixteen side by side comparisons with the older coffee vs. the fresh never frozen coffee, eight by Ken, and eight by Jim, using a factorial design that alternated the pair of machines and grinders between the fresh and frozen coffees in a balanced manner. We preferred the frozen coffee ten times, the fresh four times, with two ties. The results are suggestive, but not statistically significant, even under the severest statistical torture. On the 2nd day, following its own cupping, we did 8 similar comparisons with the coffee frozen for one month vs. the fresh-never frozen coffee. The fresh was preferred three times, the frozen three times, and there were two ties.
There is absolutely nothing in the results that would suggest that the fresh coffee made better espresso."


Die laatste zin lijkt me het belangrijkst, eerlijk gezeged.
La Scala Butterfly (+ Erics E61 thermometer), Mazzer Major, Gaggia Factory 106 met Tije's koelring, vier tampers (Vlak, American curve, Eurocurve), Gene Café, Aeropress, Kyocera CM-45, ROK-Grinder

Re: Koffie in de vriezer.

5
Inderdaad, een statistisch significant effect lijkt me met een dergelijk beperkt aantal keren niet vast te stellen. Ik denk dat daarom inderdaad de belangrijkste conclusie moet zijn dat er geen goede grond is om er vanuit te gaan dat er een duidelijk verschil is in smaak tussen de ene en de andere boon. Goed om te weten...
La Marzocco GS/3 - Anfim Super Caimano on demand

Re: Koffie in de vriezer.

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Koffiebonen en gemalen koffie kun je prima in de vriezer bewaren. Wij adviseren zelfs om gemalen koffie in de vriezer te bewaren, mits u de koffie direct vanuit de vriezer gebruikt. Ditzelfde geld voor koffiebonen... Koffiebonen uit de vriezer meteen in de koffiemaler en daarna meteen koffiezetten. Wanneer u de koffiebonen uit de vriezer in uw volautomatische koffiemachine gooit, worden de koffiebonen veel sneller oud dan wanneer deze niet uit de vriezer komen.

Advies: koffie uit de vriezer alleen gebruiken wanneer u hier meteen koffie mee zet! Anders de koffie gewoon lekker koel, droog en donker bewaren...

Michel de Regt