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Smellyhobbit
Actual Retard



Registered: 04/01/22
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Re: Recognizing and dealing with contamination [Re: Kizzle]
#27916291 - 08/24/22 09:38 AM (1 year, 5 months ago) |
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Yeah that hairy gray stuff is some kind of mold. Those are gone, I’m sorry to say
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Rnb1987
Newb

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Re: Recognizing and dealing with contamination [Re: Smellyhobbit]
#27916869 - 08/24/22 03:38 PM (1 year, 5 months ago) |
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Oh yeah they are definitely gone. When it first started I thought that it might’ve been we wispy Myc. So far it seems to be isolated to the jars That I inoculated the same culture.... i’m hoping that I can blame the syringe but im reviewing technique . Does anyone know what this Contaminant is?
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CaptPugwash
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Re: Recognizing and dealing with contamination [Re: Rnb1987]
#27921464 - 08/27/22 03:29 PM (1 year, 4 months ago) |
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Hello,
Novice grower here just on my second time. Could anyone advise what I'm seeing here? Looks like areas of black fur/fuzz (it kinda reminds me of that toy with iron filings and a magnet as a kid). I've looked into black or 'pinhead' mould, but it doesn't seem to match, this appears uniform in colour. Anything to worry about? Thanks

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Smellyhobbit
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Re: Recognizing and dealing with contamination [Re: Kizzle]
#27921473 - 08/27/22 03:38 PM (1 year, 4 months ago) |
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Looks a bit like rhizopus. Either way, definitely a contaminant. I’d isolate from other grows immediately. Probably bury or discard, but wait for someone more experienced.
It’s not cube myc, that’s for sure.
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CaptPugwash
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Re: Recognizing and dealing with contamination [Re: Smellyhobbit]
#27921997 - 08/28/22 01:20 AM (1 year, 4 months ago) |
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Damn. I should have added, I've already got a couple of nice looking fruits growing in there. Would be a shame to chuck them, but you think I should?
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cooleko
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Registered: 08/15/22
Posts: 1,010
Loc: Seattle
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Re: Recognizing and dealing with contamination [Re: CaptPugwash]
#27922006 - 08/28/22 01:37 AM (1 year, 4 months ago) |
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Quote:
CaptPugwash said: Damn. I should have added, I've already got a couple of nice looking fruits growing in there. Would be a shame to chuck them, but you think I should?
If it is rhizopus, an infection from it could kill you. Most people do not get infections from their exposure, though, so it is a numbers game. Infections are generally linked to compromised immune systems.
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Rotnpins
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Re: Recognizing and dealing with contamination [Re: Kizzle]
#27922176 - 08/28/22 07:31 AM (1 year, 4 months ago) |
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Are the thicker ropey areas just rhizo growth, or a sign of bacteria?

Picture is 3 days after final shake.. it seemed to recover fine
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Gljivar
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Re: Recognizing and dealing with contamination [Re: Rotnpins]
#27923503 - 08/29/22 03:41 AM (1 year, 4 months ago) |
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Hello guys, is this bacterial blotching?

Will shrooms be good to eat after dehidration?
Add more airflow to remedy?
Thanks!
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B Traven
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Re: Recognizing and dealing with contamination [Re: Gljivar]
#27923725 - 08/29/22 09:05 AM (1 year, 4 months ago) |
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Quote:
Gljivar said: Hello guys, is this bacterial blotching?

Will shrooms be good to eat after dehidration?
Add more airflow to remedy?
Thanks!
I don't know. Don't think so, but I might not understand what bacterial blotch is.
Yeah, looks like excess moisture to me. Along with a bunch of aborts. Why they aborted, I couldn't say definitively.
The fruits are fine to eat as long as they're not rotting. A bunch of those caps are done for, for sure. Sometimes I'll pull off the sketchy caps and keep the stipes if they look alright.
I'd go through and pull everything with a soft or rotting cap, and leave anything with a firm cap that seems to be doing alright.
Sometimes, just clearing out all those fuzzy aborts will reduce the overall moisture enough for things to work out. Sometimes simply checking the tub a couple times a day will introduce enough fresh air exchange, and also help stabilize the moisture level. But that's ultimately something you'll have to play with and work out for yourself, as you're the only one actually seeing the moisture level in person.
-------------------- Beware of advice- even this.
Edited by B Traven (08/29/22 09:06 AM)
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Hindsight
Mad Scientist


Registered: 01/24/21
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Re: Recognizing and dealing with contamination [Re: Rotnpins]
#27923758 - 08/29/22 09:32 AM (1 year, 4 months ago) |
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Quote:
Rotnpins said: Are the thicker ropey areas just rhizo growth, or a sign of bacteria?

Picture is 3 days after final shake.. it seemed to recover fine
I have seen clean Natalensis jars do that, but not any other species/varieties. On cubes, what you will see with bacterial contamination is more of a starfish-shape but I suppose it could have this pattern too. If you don't see a bunch of condensation in the jars, I would send them and see what happens.
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hambonemcgee
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Re: Recognizing and dealing with contamination [Re: Hindsight]
#27923951 - 08/29/22 11:36 AM (1 year, 4 months ago) |
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Hello everyone, these cakes were put in the water tub about a week ago and a couple cakes have developed a yellowish tinge on top. What do these look like to you? I don’t know if they are contaminated or not, it’s my second grow
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Hindsight
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Re: Recognizing and dealing with contamination [Re: hambonemcgee] 1
#27923994 - 08/29/22 12:08 PM (1 year, 4 months ago) |
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Looks like bruising from being too dry over there in that corner of your tub.
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hambonemcgee
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Re: Recognizing and dealing with contamination [Re: Hindsight]
#27923999 - 08/29/22 12:15 PM (1 year, 4 months ago) |
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Another kind person suggested that too. A few days ago, the lid to the tub got knocked askew and things got a bit dry for several hours. Since then I have kept a closer eye on it, moisture levels have stayed consistent, but the yellow/beige has appeared on one or two other cakes. The mycelium look okay to you? It’s in a water tub and the growth on the verm layer is pretty fluffy. It’s yet to pin, but with the dry spell, it may have slowed things down some. Thanks!
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Skreem
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Re: Recognizing and dealing with contamination [Re: Rnb1987]
#27924038 - 08/29/22 12:41 PM (1 year, 4 months ago) |
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Its always a sad walk into the backyard when you have to dump some grains, but it is inevitable so dont let it get you down, cheers to the next batch!
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Hindsight
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Re: Recognizing and dealing with contamination [Re: hambonemcgee]
#27924039 - 08/29/22 12:41 PM (1 year, 4 months ago) |
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I barely see any moisture droplets on the mycelium - and your tub walls look bone dry but it's hard to tell from the pic. From what I am seeing it looks too dry. Your lid may be too loose, allowing to much air exchange and that is drying it out.
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hambonemcgee
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Re: Recognizing and dealing with contamination [Re: Hindsight]
#27924064 - 08/29/22 12:56 PM (1 year, 4 months ago) |
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The walls do have condensation on them, it’s hard to see in the picture and my humidity meter has been pegged at 99 percent for days now. I know they are unreliable though. Several days ago I bumped the lid in the morning and didn’t notice it until the afternoon, so things got a bit dry. The cakes are due for a misting though, I misted them this morning and they start losing the glistening look after about 8 hours or so. Maybe I should try to restrict airflow a bit more?
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Hindsight
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Re: Recognizing and dealing with contamination [Re: hambonemcgee] 1
#27924085 - 08/29/22 01:12 PM (1 year, 4 months ago) |
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I would restrict airflow to the point that you aren't having to mist, or you are only having to mist once a day.
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hambonemcgee
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Re: Recognizing and dealing with contamination [Re: Hindsight]
#27924090 - 08/29/22 01:17 PM (1 year, 4 months ago) |
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Ok, my lid sits weird, so I may have to tape it closed in some spots to get rid of the gap. It basically has a 3mm gap all the way around the tub, I will try to tape off 75 percent of the area, to block some of the fresh air
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hambonemcgee
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Re: Recognizing and dealing with contamination [Re: hambonemcgee]
#27924102 - 08/29/22 01:25 PM (1 year, 4 months ago) |
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Alternatively, I could snap the lid on fully and drill some holes in the corners, equivalent to having the lid cocked a few centimeters
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Hindsight
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Re: Recognizing and dealing with contamination [Re: hambonemcgee]
#27924108 - 08/29/22 01:30 PM (1 year, 4 months ago) |
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Sounds like a plan. I had to do that with one style of tub.
Look at the lids - these raised ridges keep the lid lifted off. It's too much airflow. I now run purple latch sterilite tubs and they work great. JUST enough of an air gap, but not too much.
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