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 GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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 Limestone flour 
#15321815 - 11/04/11 12:20 PM (12 years, 5 months ago) |
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It is difficult to get limestone flour in my area but, I managed to obtain a 30 kg bag for around 3$.
Here is a table of contents I got from manufacturer of that calcium carbonate
1st column is obviously the substance (or diameter of particles at the bottom of table)
2nd is minimum content (in %)
3rd is maximum content (in %)
4th is avrage (in %)
Table contains information about year 2011.
So what worries me is the max measured amount of MgCO3 which is over 4%.
What I remember from Stamets's book, limestone flour should contain less than 3% of magnesium. Is this pure magnesium or magnesium carbonate? Because if he's speaking about pure then I'm ok (MgCO3 contains 28,6% of pure magnesium so after calculating, my flour contains about 1,32% of pure magnesium).
But if that information from "The Mushroom Cultivator" regards any magnesium compound then that flour is over 1% above the proper level.
Maybe I'm being to precise.
What do you think? An opinion from someone with more experience would be welcome.
Peace
GT
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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 RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
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It should be OK, because you're not using much of it. Why do you need it anyway? If you're making a casing layer, a small amount of hydrated lime will work better, and if you're making bulk substrates, they don't need to be limed.
RR
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Download Let's Grow Mushrooms
semper in excretia sumus solim profundum variat
"I've never had a failed experiment. I've only discovered 10,000 methods which do not work."
Thomas Edison
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Yes I'm making casing layer.
In this thread: http://www.shroomery.org/forums/showflat.php/Number/6051319#6051319 You advice to use both (calcium carbonate & a little bit of hydrated lime). & gypsum
Besides it is what Stamets recommends for casing layer in his book.
Calcium hydroxide is hard to find here. I mean its hard to find it in a gardening shop (i got a bag of it from a shop with masonry supplies so i dont know if its any good?)
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"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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nasser
shroomer
Registered: 08/27/11
Posts: 29
Loc: jordan 
Last seen: 9 years, 11 days
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looooooooool
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RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
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Quote:
GrimTripper said:
Yes I'm making casing layer.
In this thread: http://www.shroomery.org/forums/showflat.php/Number/6051319#6051319 You advice to use both (calcium carbonate & a little bit of hydrated lime). & gypsum
Besides it is what Stamets recommends for casing layer in his book.
Thank you for using the search engine. I've been on somewhat of a rant today for folks failing to search for their answers first. However, if you read that post again, I'm not saying to use both. Use limestone or hydrated lime. I prefer hydrated lime for casing layers because it goes to work right away when the contaminant spores are landing on your casing layer.
Limestone takes time to break down enough to alter the pH, and the average life of a casing layer is less than thirty days, so the limestone isn't going to be of much use. I used to advise against type S hydrated lime, but after using it repeatedly, it works fine. Get it at masonry shops or feed stores, but be careful. A little bit goes a long way and you can certainly make your casing layer too basic if you use too much.
RR
--------------------
Download Let's Grow Mushrooms
semper in excretia sumus solim profundum variat
"I've never had a failed experiment. I've only discovered 10,000 methods which do not work."
Thomas Edison
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Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA 
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"i got a bag of it from a shop with masonry supplies so i dont know if its any good?"
I wanted to advise caution here.
I have it from a source that I trust:
"No you need horticultural lime. Type s has lot of magnesium in it and is for plaster and mortar."
I see Mg listed in the material that you referenced.
I cannot technically defend the position....confirm of deny?
Take care,
JD
--------------------
Boyd Rice told my brother that life is a corny pack of freesakes
Myco-tek.org
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Re: Limestone flour [Re: Javadog]
#15323437 - 11/04/11 05:58 PM (12 years, 5 months ago) |
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Quote:
RogerRabbit said:
However, if you read that post again, I'm not saying to use both. Use limestone or hydrated lime.
Ok. My bad. Maybe my english is not as good as i thought it is. Thought U said to use 10% of CaCO3, 10% of gypsum & in addition a little bit of Ca[OH]2.
CaCO3 for long time work and hydrated lime for immediate affect...
Quote:
RogerRabbit said:
Get it at masonry shops or feed stores, but be careful. A little bit goes a long way and you can certainly make your casing layer too basic if you use too much.
RR
So basing on your experience could You support me with some info about how much of Ca[OH]2 should I use? Peat moss which I have has pH 3,5 - 4,5.
Or is the "one teaspoon per cup of peat" from thread mentioned above, still accurate?
Quote:
Javadog said:
"No you need horticultural lime. Type s has lot of magnesium in it and is for plaster and mortar."
I see Mg listed in the material that you referenced.
I cannot technically defend the position....confirm of deny?
Take care,
JD
Yes it does contain magnesium. But...
The lime stone flour contains less than 2% of pure Mg, and according to Stamets it should be less than 3%. So it meets the requirements.
Right?
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Quote:
RogerRabbit said:
Limestone takes time to break down enough to alter the pH, and the average life of a casing layer is less than thirty days, so the limestone isn't going to be of much use.
RR
Sorry to refer that much to Stamets but, what You said is making me confused. Why would Stamets recommend using limestone in casing layer if it's not going to do any good in a short period of time?
Or is his book that much out of date that it does not mentions using hydrated lime?
Peace
GT
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
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"Yes it does contain magnesium. But...
The lime stone flour contains less than 2% of pure Mg, and according to Stamets it should be less than 3%. So it meets the requirements.
Right?"
You did your homework well. I did not look up the numbers. This is good to know.
Take care,
JD
--------------------
Boyd Rice told my brother that life is a corny pack of freesakes
Myco-tek.org
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RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
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Re: Limestone flour [Re: Javadog]
#15324193 - 11/04/11 08:36 PM (12 years, 5 months ago) |
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The important thing to remember is to use limestone flour and not dolomite lime, often sold for lawns and which can have 20% or more Mg.
RR
--------------------
Download Let's Grow Mushrooms
semper in excretia sumus solim profundum variat
"I've never had a failed experiment. I've only discovered 10,000 methods which do not work."
Thomas Edison
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Quote:
RogerRabbit said:
The important thing to remember is to use limestone flour and not dolomite lime, often sold for lawns and which can have 20% or more Mg.
RR
Yes. Mg is why I started this thread anyway (if You read the first post again you'll notice that the amount of magnesium was the thing that bothered me)
I bought dolomite lime but before using it I looked up some info and ended up returning it to the store.
I guess I'll have to give it a try (one tray with CaCO3 & one with Ca[OH]2) and see for myself which one gives better results.
Ok, thank you, JD & RR, for helping me resolve my concerns.
Peace
GT
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
Edited by GrimTripper (11/05/11 01:40 AM)
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Umeltin
Gregory
Registered: 10/05/11
Posts: 1,530
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i got a 50lb bag for $5 and use it with this tek.. http://www.fungifun.org/English/Casing
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Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
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Quote:
GrimTripper said:
Quote:
RogerRabbit said:
The important thing to remember is to use limestone flour and not dolomite lime, often sold for lawns and which can have 20% or more Mg.
RR
Yes. Mg is why I started this thread anyway (if You read the first post again you'll notice that the amount of magnesium was the thing that bothered me)
I bought dolomite lime but before using it I looked up some info and ended up returning it to the store.
I guess I'll have to give it a try (one tray with CaCO3 & one with Ca[OH]2) and see for myself which one gives better results.
Ok, thank you, JD & RR, for helping me resolve my concerns.
Peace
GT
..and thank you for pointing out the threshold for concern.
I only knew of the concern, and not the amount.
Good luck!
JD
--------------------
Boyd Rice told my brother that life is a corny pack of freesakes
Myco-tek.org
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Re: Limestone flour [Re: Javadog]
#15326277 - 11/05/11 11:05 AM (12 years, 5 months ago) |
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Quote:
Javadog said:
..and thank you for pointing out the threshold for concern.
I only knew of the concern, and not the amount.
Good luck!
JD
I checked again the amount of Mg and appears I made a tiny mistake. Stamtes recommends less than 2% of magnesium (not 'less then 3%' like I said before).
I know the difference is slight, but I just wanted to be precise. Especially when I'm quoting someone.
Peace
GT
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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GrimTripper
Registered: 10/14/08
Posts: 561
Loc: Europe
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Re: Limestone flour [Re: Umeltin]
#15326331 - 11/05/11 11:16 AM (12 years, 5 months ago) |
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Quote:
masterdebator said:
i got a 50lb bag for $5 and use it with this tek.. http://www.fungifun.org/English/Casing
Thank U Sir... It will come in handy for sure 
Peace
GT
--------------------
"Well, like the Good Book says, 'Let he who is without sin throweth the first rock...and I shalt smoketh it!'"
Man goes to doctor. Says he's depressed. Says life seems harsh and cruel. Says he feels all alone in threatening world where what lies ahead is vague and uncertain. Doctor says, "Treatment is simple. Great clown Pagliacci is in town tonight. Go and see him. That should pick you up." Man bursts into tears. Says "But Doctor... I am Pagliacci."
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