[foodhackingbase] [Noisebridge-discuss] how to build up cold room - cooling system tips

Fri Mar 15 01:23:25 CET 2013

Thanks,
Answers in the text as >>>

Frantisek Algoldor Apfelbeck

biotechnologist&kvasir and hacker
http://www.frantisekapfelbeck.org

"There is no way to peace, peace is the way." Mohandas Karamchand Gandhi

________________________________
 From: Richard Conroy <richard.conroy at gmail.com>
To: "091-food at googlegroups.com" <091-food at googlegroups.com> 
Cc: tastebridge tastebridge <tastebridge at lists.noisebridge.net>; 091 Foods <091-food at googlegroups.com>; "foodhackingbase at lists.hackerspaces.org" <foodhackingbase at lists.hackerspaces.org>; Noisebridge <noisebridge-discuss at lists.noisebridge.net> 
Sent: Thursday, March 14, 2013 11:29 PM
Subject: Re: [Noisebridge-discuss] how to build up cold room - cooling system tips

an airlock style double door will go a long way towards preventing temperature dilution.

>>> yes  that sounds like a good idea, I should not go to the cold room very often, maybe few times per day so there should not be too much air exchange with the fermentation room

The key thing with a cold room is how precise you need the cooling to be. I know a few guys who do lagering and that is tricky to get right. 

>>> The temperature in the cold room can range between 1-4C (34-39F) or so, it doesn't has to be precise too much in this case because various brews will be stored there.

If your insulation is good then your cooling needs only be active in restoring the temperature. 

>>> I will have to decide on the insulation, I think that 15-20 cm (+-0.6ft) of polystyrene should do the trick, with probably 2 drywall panels on the top and some easy to clean painting. Option number two which may be more easy here is to buy already made panels with steel coating on both sides and polystyrene in the middle, they use it here a lot. However if I get that, I need to get hands on some metal cutter and probably welding gear and I'm quiet inexperienced with both ... 

Also if you can get your hands on a horizontal fridge like what you get in a supermarket for ice creams, it will provide a lot of protection as it is well insulated 

>>> I have seen guys using this type of freezer but hacked in Seoul exactly for lagering beer, looked good, I may use it in the future for the same process.

>>> Many thanks, still doing research on the cooling unit but it looks like that it should not be too difficult to turn the air conditioner to the cooling device, there is a commercial kit called coolbot for some $300. I want to find if they are open source and if they are not I want to find some open source option. This will be amazing thing to do in Central America ... I am sure some people do it already but many do not know how to do such things, ohhh hackerspaces how much we need them!

>>> Sincerely from Jeju,

>>> Frantisek

Sent from my iPhone

On 13 Mar 2013, at 13:00, Frantisek Apfelbeck <algoldor at yahoo.com> wrote:

Hi to all,
>I'm preparing proposal for a fermentation facility (which I will share soon) for a village project here in South Korea  Jeju) and part of that is build up of fermentation room and importantly for this email cold room. I would like to ask if someone has experience with building up a cold room or just knows the staff. I have used many of  them during my work both in industrial facilities and in academy environment but never build any by myself. The major think at the moment is the cooling unit - what would be the  types and prices. I wonder if there would be some way how to hack an existing air conditioner if so what types ... Important note we have access to a steady supply of electricity and water.
>
>
>Few details about cold room. The temperature inside should be 1-4C (34-39F), the space is around a=2 m (2yd 0.56b ft(; b=3 m (3yd 0.84 ft); c=2.5 m (2yd 2.2 ft), the measures are just approximate I need more details, the place is actually quite irregular in it's shape, part of it is under the stairs (I should have details next week, once I have I make and share a basic Google SketchUp model).  In order to get into the cold room we will have to walk through the fermentation room which will be set at temperature of 25C (77F) of similar size more as the cold room, just longer and more narrow. The floor are tiles and concrete below, walls are first the two layers of drywall and below I believe solid concrete but I have to check on that (I certainly plan to put in some insulation like polystyrene). Note - I have to say that I'm quite a bit worried about the transfer of the heat from the fermentation room to the cold room ...
>
>
>Up to now my impression about cooling systems which could be used is that they are above $1000 or even $2000 which is quite a bit, am I right?
>
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>Well that would be the basic details. I plan to share the know how which will be accumulated during this project as usually so it can be used by people in the future. I hope to replicate the cold room in the future of course, first chance may be this summer at OHM 2013 in Holland with Food Hacking base project, if everything goes alright, the cooling space for supplies/brews is always an issue.
>
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>Many thanks for any help!
>
>
>Sincerely,
>
>
>FAA
> 
>PS I'm not sure at the moment how much I can share the financial details of the project (I think it should be fine, but I should ask first) but I can imagine $2000 going to the cold room (material/equipment) maybe a bit more but not too much ...
>
>
>Frantisek Algoldor Apfelbeck
>
>
>biotechnologist&kvasir and hacker
>
>
>http://www.frantisekapfelbeck.org
>
>
>
>"There is no way to peace, peace is the way." Mohandas Karamchand Gandhi
>
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