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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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steam sterlizer/bags
#23876811 - 11/28/16 11:16 PM (7 years, 3 months ago) |
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So I'm looking at building a steam sterilizer this summer. Looking at an atmospheric pressure @ 3000 feet in 55 Gallon plastic drum.
I'm looking at using an old metal grate or something instead of growers wood base. Should fit just fine, going to look through some scrap bins for the grate.
This will just be used for saw dust / bran bags only. I've been reading that it should be 8-24 hours minimum. This is a huge windows.
I plan on pre sealing .5 micron bags like gr0wer to prevent contamination Still unsure if they would last sealed in a pressure cooker.
Also most bags are over 18 inches tall. My flow hood is 18 tall and 24 wide. I'm thinking of down grading to shorter bags and raising my flow hood on some wood blocks.
I spill a lot of grains and add a lot more than needed to out compete any comments introduced.
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primus
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Re: steam sterlizer/bags [Re: vatman]
#23878005 - 11/29/16 11:34 AM (7 years, 3 months ago) |
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My only suggestion would be metal will rust, unless it's galvanized or stainless.
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: primus]
#23878012 - 11/29/16 11:37 AM (7 years, 3 months ago) |
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True, it is only supporting the bags so rust shouldn't hurt anything.
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Quadman
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Re: steam sterlizer/bags [Re: vatman]
#23878295 - 11/29/16 01:27 PM (7 years, 3 months ago) |
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You can get an industrial epoxy coating for inside your barrel that might hold up.
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: Quadman]
#23878365 - 11/29/16 01:52 PM (7 years, 3 months ago) |
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I was thinking plastic and not a metal barrel.
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Quadman
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Re: steam sterlizer/bags [Re: vatman]
#23878372 - 11/29/16 01:54 PM (7 years, 3 months ago) |
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That works
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: Quadman]
#23878390 - 11/29/16 02:01 PM (7 years, 3 months ago) |
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Yeah thinking a 1500W water heater element and a steel water level control like gr0wer.
I am still not sure what to do about the flow hood being 18 inches tall. If I should just get some 2 by 4s and raise it to work with bags that are 18 inches long or raise it even more to deal with longer bags.
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Quadman
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Re: steam sterlizer/bags [Re: vatman]
#23878397 - 11/29/16 02:04 PM (7 years, 3 months ago) |
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I've got some xl bags and my filter is 18"x42" . I just lay them on their side . Have to do that anyway to seal them.
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: Quadman]
#23878453 - 11/29/16 02:22 PM (7 years, 3 months ago) |
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Ahh I always try to work in the center of my airflow and not near any of the sides. (mine being half your long) I also assmume you are working at an angel and dont have the opening on the bottom.
Have an issue with spillage and how long do you leave your flow hood on before you start working?
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Quadman
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Re: steam sterlizer/bags [Re: vatman]
#23878705 - 11/29/16 03:48 PM (7 years, 3 months ago) |
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This time of year about 10 min.
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Gr0wer
always improving



Registered: 09/16/03
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Re: steam sterlizer/bags [Re: Quadman]
#23880101 - 11/29/16 10:02 PM (7 years, 3 months ago) |
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I got mine for sale in marketplace I went to a scrapper and got the back of a SS fridge cut out. Used that for a ring and made two C pieces to hold the bottom up. Cost me like $40 and about 30 min of cutting/grinding. The C shaped legs can be seen here
Edited by Gr0wer (11/29/16 10:03 PM)
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: Gr0wer]
#23880227 - 11/29/16 10:48 PM (7 years, 3 months ago) |
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What happened to your plastic sterilizer?
1k for a stainless steal looks nice and all but little steep for starting off lol Think ill end up building my own plastic one.
(I know a drum that size and metal cost close to 800 alone)
Edited by vatman (11/29/16 10:58 PM)
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MorePies
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Re: steam sterlizer/bags [Re: vatman]
#23881535 - 11/30/16 12:50 PM (7 years, 2 months ago) |
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In your op you said .5 micron bags and presealing. Im not 100%, but I believe 5 micron bags are presealable, not .5
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primus
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Re: steam sterlizer/bags [Re: MorePies]
#23881543 - 11/30/16 12:52 PM (7 years, 2 months ago) |
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The 5 micron bag is made of a different material than the .5?
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vatman
I'm Vatman


Registered: 04/17/14
Posts: 1,642
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Re: steam sterlizer/bags [Re: MorePies]
#23881550 - 11/30/16 12:54 PM (7 years, 2 months ago) |
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.5 microns used in steam sterilizer not a pressure cooker.
5 microns is more pours allowing more through Things down to 5 microns where .5 is half a micron if I am not wrong. Generally 5 micron bags are a little bit cheaper.
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Shirak
Uhhhh

Registered: 05/24/16
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Re: steam sterlizer/bags [Re: vatman]
#23881616 - 11/30/16 01:18 PM (7 years, 2 months ago) |
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I run .5 and 5 micron presealed through my pressure cooker just fine. The thing to remember with .5 is to let the pressure drop slowly if they are under any pressure so the bag can equalize while it cools and not pop the seal.
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solarity
mm... my favourite food



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Re: steam sterlizer/bags [Re: Shirak]
#23882080 - 11/30/16 03:31 PM (7 years, 2 months ago) |
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I have a 1ft x 2ft LFH and I use the big Unicorn bags for 5kg spawn/bag - I mounted the filter vertically. Must have made well over 3000kg of spawn, bag to bag without any issues.
To steam sterilise you need to monitor the core temperature - ie the middle of the middle bag and start your timing from then.- 12 hours.
-------------------- Commercial exotics farmer for 8 years - now sold up!
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drake89
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Re: steam sterlizer/bags [Re: primus]
#23882209 - 11/30/16 04:03 PM (7 years, 2 months ago) |
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Quote:
primus said: The 5 micron bag is made of a different material than the .5?
no but the filter is
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MorePies
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Re: steam sterlizer/bags [Re: Shirak]
#23883341 - 11/30/16 11:23 PM (7 years, 2 months ago) |
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Quote:
Shirak said: I run .5 and 5 micron presealed through my pressure cooker just fine. The thing to remember with .5 is to let the pressure drop slowly if they are under any pressure so the bag can equalize while it cools and not pop the seal.
Thanks for clearing that up!
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