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Chuck211
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Heavy metals in coconut coir?
#26412717 - 01/02/20 02:53 PM (4 years, 1 month ago) |
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Hello, I am new to cultivation and am using the PF tek to mono tub method. I have inoculated my BRF cakes and the next step is making a bulk substrate to move the colonized cakes into. I was going to use coconut coir but recently heard from someone who works in the legal cannabis industry that a lot of grows tested high for heavy metals that used coco coir as their grow medium. Has anyone heard of coconut coir testing high for heavy metals? What is a good alternative that is easy to prepare? I heard someone uses hardwood mulch, would the amount of boiling water added to mulch be different than the amount needed for the coir?
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,890
Loc: Milky way
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Re: Heavy metals in coconut coir? [Re: Chuck211]
#26412743 - 01/02/20 03:09 PM (4 years, 1 month ago) |
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Cubensis won't grow on wood so you'd have to pick different species.
I would imagine most wood having higher levels of metal but I don't know. Haven't heard any concerns from any growers from hobby to commercial though with any commonly used substrate
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Takkaji
High On Stress 24/7


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Re: Heavy metals in coconut coir? [Re: bodhisatta]
#26412771 - 01/02/20 03:24 PM (4 years, 1 month ago) |
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Azure? Those grow good on that wood I think.. idk... I started on Pans and stayed with them.
-------------------- The will of the Shroom guides me.
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gizmo1



Registered: 06/15/11
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Loc: FREEDOM
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Re: Heavy metals in coconut coir? [Re: Takkaji]
#26412782 - 01/02/20 03:31 PM (4 years, 1 month ago) |
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Alzheimers is some scary shit.
-------------------- Trade List πππ 6 hole Mini Monos
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StygianKnight
A Mushroom

Registered: 03/12/12
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Re: Heavy metals in coconut coir? [Re: gizmo1]
#26412798 - 01/02/20 03:40 PM (4 years, 1 month ago) |
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A quick bit of reading shows that Coco Coir itself is low in heavy metals but is excellent at absorbing and holding on to them, (which seems to be one industrial use of coir). This can be a problem in plant grows as it will trap and hold onto the heavy metals in fertilizer making them more available to the plant, but the metals seem to come from an outside source of fertilizer and not the coir itself.
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HolyBolete
Mold Slayer



Registered: 12/15/19
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This thread reminds me, does anyone know a good horse poo tek?
Edited by HolyBolete (01/02/20 06:20 PM)
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InfiniteDreams


Registered: 10/25/19
Posts: 1,224
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Re: Heavy metals in coconut coir? [Re: HolyBolete]
#26413070 - 01/02/20 06:42 PM (4 years, 1 month ago) |
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Reminds me of people making bone broth (considered very healthy) but using bones from cattle that were not grain-fed. The heavy metals were stored in the bone marrow and then imparted into the bone broth. So like StygianKnight said, where are the heavy metals coming from?
In my case it was the cattle's diet, not inherent to the cattle themselves. So the coir shouldn't intrinsically have heavy metals in it, however, if the food source for the coconut had it would it then be in the coir? Is our coir contaminated? Also, should look at the biological transference for the shrooms, even if heavy metals are present in the medium, will cubensis absorb them?
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gizmo1



Registered: 06/15/11
Posts: 3,831
Loc: FREEDOM
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Quote:
InfiniteDreams said: Reminds me of people making bone broth (considered very healthy) but using bones from cattle that were not grain-fed. The heavy metals were stored in the bone marrow and then imparted into the bone broth. So like StygianKnight said, where are the heavy metals coming from?
In my case it was the cattle's diet, not inherent to the cattle themselves. So the coir shouldn't intrinsically have heavy metals in it, however, if the food source for the coconut had it would it then be in the coir? Is our coir contaminated? Also, should look at the biological transference for the shrooms, even if heavy metals are present in the medium, will cubensis absorb them?
I've seen cubensis consume aluminum so I'm thinking if there is heavy metals in the coir then maybe yes? Ever tried to grow in aluminum trays? Cubes will eat that shit lol. Or atleast break it down I'm not going to pretend that I know what's going on at a biological level but I can tell you I won't be using aluminum trays anymore.
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cronicr



Registered: 08/07/11
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Re: Heavy metals in coconut coir? [Re: gizmo1]
#26413095 - 01/02/20 07:01 PM (4 years, 1 month ago) |
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Cubes d0nt consume aluminum the enzymes released while colonizing can put holes in it but it's only an issue with colonizing subs or we wouldn't be sitting cakes on top of it
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SpunkyMonkey88
Stranger



Registered: 10/08/19
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Quote:
StygianKnight said: A quick bit of reading shows that Coco Coir itself is low in heavy metals but is excellent at absorbing and holding on to them, (which seems to be one industrial use of coir). This can be a problem in plant grows as it will trap and hold onto the heavy metals in fertilizer making them more available to the plant, but the metals seem to come from an outside source of fertilizer and not the coir itself.
Makes you wonder how much aluminum is passed into the fruits when you spawn your shit into those aluminum baking trays and bu the end of the first flush theres already holes in it from the mycelium digesting it...
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cronicr



Registered: 08/07/11
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Again the mycelium is not digesting it
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JesusOnAdderall
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Registered: 09/10/17
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Quote:
InfiniteDreams said: Reminds me of people making bone broth (considered very healthy) but using bones from cattle that were not grain-fed. The heavy metals were stored in the bone marrow and then imparted into the bone broth. So like StygianKnight said, where are the heavy metals coming from?
In some parts of the U.S high concentrations of lead were a result of lead gasoline but there wasn't really a country wide cleanup after unleaded gasoline was standard. So anywhere downwind of busy highways could still be somewhat contaminated today.
There are also superfund sites all over the country and living near one carries a higher risk of health problems and could also be responsible, especially if heavy metals are seeping into a water table.
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Chuck211
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Thanks! What you said makes sense and cleared up any worries I had about using coconut coir.
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Kizzle
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Registered: 08/30/11
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Quote:
SpunkyMonkey88 said:
Quote:
StygianKnight said: A quick bit of reading shows that Coco Coir itself is low in heavy metals but is excellent at absorbing and holding on to them, (which seems to be one industrial use of coir). This can be a problem in plant grows as it will trap and hold onto the heavy metals in fertilizer making them more available to the plant, but the metals seem to come from an outside source of fertilizer and not the coir itself.
Makes you wonder how much aluminum is passed into the fruits when you spawn your shit into those aluminum baking trays and bu the end of the first flush theres already holes in it from the mycelium digesting it...
FYI vermiculite is like 15% aluminum oxide
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Sir Pentinite
Stranger all the time.

Registered: 05/15/19
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Re: Heavy metals in coconut coir? [Re: Chuck211] 1
#26413511 - 01/03/20 12:39 AM (4 years, 1 month ago) |
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Quote:
Chuck211 said: I was going to use coconut coir but recently heard from someone who works in the legal cannabis industry that a lot of grows tested high for heavy metals that used coco coir as their grow medium.
That is just going to get people worked up without knowing any of the facts.
All they have to do is test the unused coir to see if that's the cause. Testing the cannabis after it's been exposed for months to coir, water, fertilizers, and possibly soil or even industrial fallout doesn't do anything to identify the source.
-------------------- "I thought to myself 'Boy, I'm sure glad there's nobody here to see this because this is exactly the sort of thing that gets people riled-up and they assume you're dying and that something has to be done. Where if you're alone, you know, you either come through it or you die, but in any case you avoid the fuss.'" - Terrence McKenna
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sporealchemy
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Even if the metals were present what is the likelihood of cubensis uptaking metals in the same way cannabis does?
-------------------- "Once your spawn jars are fully colonized, you can scratch your butt while you inoculate the coir if you want."-RR

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Solipsis
mΜΆaΜΆdΜΆ disappointed scientist



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Re: Heavy metals in coconut coir? [Re: sporealchemy]
#26413588 - 01/03/20 02:35 AM (4 years, 1 month ago) |
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The aluminum - Alzheimer's link is debunked.
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
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Re: Heavy metals in coconut coir? [Re: Solipsis]
#26413641 - 01/03/20 04:49 AM (4 years, 1 month ago) |
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Probably for over a decade now
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SpunkyMonkey88
Stranger



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Re: Heavy metals in coconut coir? [Re: Kizzle]
#26413673 - 01/03/20 05:38 AM (4 years, 1 month ago) |
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Quote:
Kizzle said:
Quote:
SpunkyMonkey88 said:
Quote:
StygianKnight said: A quick bit of reading shows that Coco Coir itself is low in heavy metals but is excellent at absorbing and holding on to them, (which seems to be one industrial use of coir). This can be a problem in plant grows as it will trap and hold onto the heavy metals in fertilizer making them more available to the plant, but the metals seem to come from an outside source of fertilizer and not the coir itself.
Makes you wonder how much aluminum is passed into the fruits when you spawn your shit into those aluminum baking trays and bu the end of the first flush theres already holes in it from the mycelium digesting it...
FYI vermiculite is like 15% aluminum oxide 
Alright that's it, I'm out!
Lol
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
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Loc: Milky way
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Even before modern times humans received more than enough aluminum. Your body gets rid of it. Aluminum in the brain is a symptom of Alz not a cause.
Like finding broken glass is a symptom of breaking glass not the cause of the glass breaking.
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