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11-07-2019, 20:50   #1066
murphyebass
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The degradation process slows down by a massive amount when you freeze. The degradation is caused by oils evaporating and volatile compounds escaping. Freezing does a number of things.

Firstly, the lack of moisture in the bean makes it ideal. Most issues with freezing food happens when water freezes and expands and it breaks down the cell walls. That can’t happen in coffee. Secondly, the oils contract into the bean when it’s frozen, protecting them from breaking down. And thirdly, by dropping the temperature, the volatile compounds that give coffee aroma and flavour are prevented from escaping.

Like I said, I read about it in a Scott Rao book (And he’s probably forgotten more about coffee than I’ll ever know) and he tells a story about finding beans he had frozen years previously in his parents house. Instead of tossing them he defrosted and brewed and was amazed at how well they held up. I think it was 4 or 5 years in the freezer.

And it’s as simple as freezing in the unopened bag and defrosting before opening. I suggest you try it yourself.
Thanks for the suggesting I try something you don’t know if I’ve tried or not.

For what it’s worth I have tried it, but It doesn’t suit what I want as I’ve already said in good quality lightly roasted beans.

Yet again I didn’t say you couldn’t do it. I said most people won’t do it. Think of the thawing chicken analogy.

And yes food degrades slower in a freezer but it still degrades.
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11-07-2019, 20:58   #1067
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Thanks for the suggesting I try something you don’t know if I’ve tried or not.
You had already said you don’t do it.

Quote:
And yes food degrades slower in a freezer but it still degrades.
Your coffee is degrading regardless. Preground degrades faster than whole bean. Whole bean degrades faster than frozen whole bean. Freezing 5 or 6 kilos for 2 or 3 months is not going to make any perceptible difference in the quality of the cupping.
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11-07-2019, 21:14   #1068
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You had already said you don’t do it.



Your coffee is degrading regardless. Preground degrades faster than whole bean. Whole bean degrades faster than frozen whole bean. Freezing 5 or 6 kilos for 2 or 3 months is not going to make any perceptible difference in the quality of the cupping.
Don’t do it doesn’t mean I haven’t tried it in the past. It’s not like this is a new ground breaking technique your putting out here.

I disagree with your thoughts on cupping after 2/3 months frozen vs fresh.

Again if done right it’s not a bad process, but it doesn’t come without its hazards and issues for most wannabe home baristas.

You’re clearly a fan and that’s fine.

I’m not against it but I definately don’t think it’s for everybody.
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11-07-2019, 21:20   #1069
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Don’t do it doesn’t mean I haven’t tried it in the past. It’s not like this is a new ground breaking technique your putting out here.

I disagree with your thoughts on cupping after 2/3 months frozen vs fresh.

Again if done right it’s not a bad process, but it doesn’t come without its hazards and issues for most wannabe home baristas.

You’re clearly a fan and that’s fine.

I’m not against it but I definately don’t think it’s for everybody.
The test I posted showed no perceivable difference after 2 months.

Fair enough,it’s not for you, but I’ve recommended it for people who have just ordered 12kg of coffee for a bean to cup machine. It’s certainly going to be better than storing in a cupboard.
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11-07-2019, 21:24   #1070
murphyebass
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The test I posted showed no perceivable difference after 2 months.

Fair enough,it’s not for you, but I’ve recommended it for people who have just ordered 12kg of coffee for a bean to cup machine. It’s certainly going to be better than storing in a cupboard.
“No perceivable difference”......... This is in your opinion. I disagree.

I’m not saying it’s a bad idea but I think the execution in most circumstances will be less than favourable for most people.
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11-07-2019, 21:27   #1071
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Has anyone tried the coffee yet (frozen or unfrozen)?

Curious to know what it's like
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11-07-2019, 21:31   #1072
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“No perceivable difference”......... This is in your opinion. I disagree.
It’s from that blind testing I posted the link to.
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11-07-2019, 21:44   #1073
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It’s from that blind testing I posted the link to.
And there’s many other videos online to show the direct opposite of that. So what?
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11-07-2019, 21:45   #1074
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Is it next day delivery?
Shoukd have mine tomorrow.
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11-07-2019, 23:43   #1075
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And there’s many other videos online to show the direct opposite of that. So what?
Here’s a great one. It’s a scientist talking about degassing and freshness and from 39 minutes in he talks specifically about freezing. The highlights are:

- no changes to the structure of the bean due to freezing (due to lack of moisture)
- CO2 degassing greatly slowed down compared to room temp (12 times slower)
- aromatics naturally much slower than CO2 leaving the beans
- degassing profile of thawed beans is exactly the same as that of fresh beans
- method used was freezing in standard sealed valve bags. Allow to get to room temp before opening

The main takeaway was that there is no difference in the chemical makeup or structure of the bean, and that due to the degassing rate 1-4 week old fresh beans are analogous to 3-12 month frozen beans.




I’ve said my bit now and am aware it’s Bargain Alerts. I’m happy to debate it over on Tea and Coffee.
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15-07-2019, 13:33   #1076
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Cheers to Stimpson for doing the heavy lifting and sorting me out with 6kg of magic beans!
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15-07-2019, 17:10   #1077
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Did anyone actually drink this coffee yet ?

Verdict?
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15-07-2019, 17:12   #1078
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Did anyone actually drink this coffee yet ?

Verdict?
Bumping this thread on Prime Day!

You evil bollox!
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15-07-2019, 17:14   #1079
jam_mac_jam
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224 GBP for the 4200.
https://www.amazon.co.uk/DeLonghi-Ma...A3P5ROKL5A1OLE
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15-07-2019, 19:27   #1080
stimpson
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And this looks good at £289:

https://www.amazon.co.uk/DeLonghi-Au...A3P5ROKL5A1OLE
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