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DeadPhan


Registered: 05/05/04
Posts: 5,260
Last seen: 4 years, 2 months
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Can rusty lids cause contams?
#18757580 - 08/25/13 10:45 PM (10 years, 5 months ago) |
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Just curious if like there is anything in a rusty lid that could cause a contam. Like as the jar colonized and some of the rust degrades and opens up might there be latent stuff in there not killed by PCing? I need to get some new lids but until I can I've got some slightly rusty ones and I've been getting contams and wider if that could be a source.
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Big Gulps! Alright! Well, See ya later! And if i claim to be a wise man, well, it surely means that i dont know!
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Can rusty lids cause contams? [Re: DeadPhan]
#18757584 - 08/25/13 10:45 PM (10 years, 5 months ago) |
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Depends on if the rust compromises the lid or the seal
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Stromrider
This must be the place



Registered: 06/02/13
Posts: 7,326
Loc: Dept of know what I'm say...
Last seen: 19 hours, 8 minutes
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Lids are really really cheap man. If the rust is so bad you're worried about it then get you some new ones. Although I have used lids with small amounts of rust without issues
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gman7104

Registered: 09/11/11
Posts: 820
Last seen: 7 years, 2 months
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Ive used rusty lids. Are you using a verm barrier? If not then your at risk for contams. How bad is the rust?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Can rusty lids cause contams? [Re: gman7104]
#18757729 - 08/25/13 11:18 PM (10 years, 5 months ago) |
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I'm guessing he's using whole grains.
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San
Novice


Registered: 10/30/11
Posts: 646
Last seen: 9 years, 5 months
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Coat the exposed parts with something. These lids weren't meant to have holes poked in them.
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Actually not everyone was a noob. Being a noob is a very new phenomenon. Many people, the great majority in fact, were simply "beginners", "novices" or "new to mushroom growing". Being a "noob" is reserved, and in fact created specifically for and by, the newer, much more lame generations coming about. -Shpongle1
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Timehole



Registered: 04/28/12
Posts: 156
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Re: Can rusty lids cause contams? [Re: DeadPhan]
#18757746 - 08/25/13 11:21 PM (10 years, 5 months ago) |
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I recently had a few jars go bad due to what I believe was rusty lids.
As Frank said the rust can compromise the seal around the lid, mind you I use my lids upside down. I ended up cleaning em with an aluminium oxide pad (like steel wool).
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Can rusty lids cause contams? [Re: Timehole]
#18757754 - 08/25/13 11:22 PM (10 years, 5 months ago) |
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Just use plastic lids 
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Stromrider
This must be the place



Registered: 06/02/13
Posts: 7,326
Loc: Dept of know what I'm say...
Last seen: 19 hours, 8 minutes
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Yeah I been meaning to get some of those myself
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Stratman
virgin mycologist


Registered: 06/30/11
Posts: 294
Loc: At the centre of infinity
Last seen: 1 year, 4 months
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Re: Can rusty lids cause contams? [Re: Stromrider]
#18759031 - 08/26/13 09:49 AM (10 years, 5 months ago) |
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Dipping the lids in a hydrochloric acid/water mix of 10:1 should take all rust off instantly. The acid is non corrosive to the rubber ports and SFD's
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Can rusty lids cause contams? [Re: Stratman]
#18759040 - 08/26/13 09:51 AM (10 years, 5 months ago) |
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What good does removing the rust do? The rust is not a problem.
The compromised lid is the problem.
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Stratman
virgin mycologist


Registered: 06/30/11
Posts: 294
Loc: At the centre of infinity
Last seen: 1 year, 4 months
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Re: Can rusty lids cause contams? [Re: FrankHorrigan] 1
#18759069 - 08/26/13 09:59 AM (10 years, 5 months ago) |
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You're right but I've seen some terribly rusty lids here on this forum and I wouldn't let my lids get that bad before I cleaned them. When doing g2g transfers in a SAB I dont want residue on my sterile gloves, but that's just me.
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Can rusty lids cause contams? [Re: Stratman]
#18759078 - 08/26/13 10:01 AM (10 years, 5 months ago) |
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Fair enough.
I love my plastic lids!
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