|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
fungalEntropy
misfiring synapses
Registered: 05/17/10
Posts: 279
Last seen: 12 years, 7 months
|
Adding gypsum to brf cakes
#12642295 - 05/27/10 10:21 PM (13 years, 9 months ago) |
|
|
Ratio for BRF cakes are 2:1:1 verm:water:brf. What is the ratio for adding gypsum to the substrate mix?
|
Chlawre
Amateur
Registered: 04/08/10
Posts: 112
Loc:
Last seen: 10 years, 1 month
|
|
Like a tablespoon per 5 cakes? Dunno how that works out otherwise, I always make my cake substrate in quantities enough for 5
|
afrosheen
9Lives the cat
Registered: 03/06/10
Posts: 1,878
Last seen: 2 years, 5 months
|
|
1 tablespoon to 5 cakes is what I've seen before. Seems to work well.
--------------------
|
fungalEntropy
misfiring synapses
Registered: 05/17/10
Posts: 279
Last seen: 12 years, 7 months
|
Re: Adding gypsum to brf cakes [Re: afrosheen]
#12642323 - 05/27/10 10:25 PM (13 years, 9 months ago) |
|
|
Cool thx for the quick response Duly noted: 1 tbsp for 5 cake mixture
|
silas simon
get it
Registered: 03/21/10
Posts: 570
Last seen: 2 years, 6 days
|
Re: Adding gypsum to brf cakes [Re: Chlawre]
#12642346 - 05/27/10 10:27 PM (13 years, 9 months ago) |
|
|
1 US cup = 8 US fluid ounces 1 US tablespoon = 0.5 US fluid ounces
32:0.5 ratio
-------------------- ever so curious about psilocybe baeocystis. do please pm me if you can facilitate some hands on learning!
|
Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
|
|
If I might...I have heard gypsum referred to as a Ph buffer (and that it supplies minerals needed for fruiting).
So, as opposed to lime, the amount of gypsum (modulo extremes) should not be the most sensitive factor.
....but I am using a Tablespoon for each five cakes until further notice. ;0)
P.S. Supporting the other responder: a useful mnemonic:
"A pint's a pound, the world round" (i.e. 2 cups == 16 ounces) (Thanks Mom!)
-------------------- Boyd Rice told my brother that life is a corny pack of freesakes Myco-tek.org
|
Pscientist
KushKaptain
Registered: 11/13/09
Posts: 2,685
Loc: Sirius X1
Last seen: 6 days, 21 hours
|
Re: Adding gypsum to brf cakes [Re: Javadog]
#12642462 - 05/27/10 10:42 PM (13 years, 9 months ago) |
|
|
Quote:
Javadog said:
P.S. Supporting the other responder: a useful mnemonic:
"A pint's a pound, the world round" (i.e. 2 cups == 16 ounces) (Thanks Mom!)
That might be true for water, but not all liquids have the same density a pint of butane and a pint of H20 will have vastly different masses , therefore a pint =/= a pound the world around
-------------------- Any information posted on this website from this account is hypothetical and only to be used for legal purposes.
|
RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
|
Re: Adding gypsum to brf cakes [Re: Javadog]
#12643122 - 05/28/10 01:05 AM (13 years, 9 months ago) |
|
|
Quote:
Javadog said: If I might...I have heard gypsum referred to as a Ph buffer (and that it supplies minerals needed for fruiting).
Incorrect on the former, true on the latter. Gypsum isn't used to adjust pH. 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
|
Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
|
Re: Adding gypsum to brf cakes [Re: RogerRabbit]
#12643252 - 05/28/10 01:44 AM (13 years, 9 months ago) |
|
|
Yes. ...but I used "buffer".
Not that this is not complete BS, but IIRC the idea was that Gypsum has the effect of buffering Ph.
Which in this case, I would take to mean that it makes the Ph more stable.
...but I get the feeling that I am a tad far afield.
-------------------- Boyd Rice told my brother that life is a corny pack of freesakes Myco-tek.org
|
ruckusman
Figment of my own imagination
Registered: 05/08/10
Posts: 190
Last seen: 3 years, 5 months
|
Re: Adding gypsum to brf cakes [Re: Javadog]
#12644528 - 05/28/10 10:32 AM (13 years, 9 months ago) |
|
|
So Gypsum is a nutrient that has the side effect of changing pH slightly or buffering?
Gypsum can be used in cakes &/or grain spawn?
And hydrated lime is the buffer usually used for bulk substrates
Seems the more I read the less I remember correctly these days
And now I've forgotten the function of calcium carbonate
Edited by ruckusman (05/28/10 10:33 AM)
|
RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
|
Re: Adding gypsum to brf cakes [Re: ruckusman]
#12644599 - 05/28/10 10:47 AM (13 years, 9 months ago) |
|
|
Quote:
And hydrated lime is the buffer usually used for bulk substrates
No. don't use lime on substrates. They're fine the way they are. Gypsum supplies calcium which by itself would raise pH, and sulfur, which by itself would lower pH. Working together, they tend to help keep pH stable, while providing essential minerals.
A side benefit of gypsum is it helps prevent grains from clumping. 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
|
Sgt. Frost
Registered: 04/16/10
Posts: 254
|
|
Quote:
fungalEntropy said: Ratio for BRF cakes are 2:1:1 verm:water:brf. What is the ratio for adding gypsum to the substrate mix?
Shea25 did an awesome tek using gypsum.
Quote:
Shea25 said: The basic recipe for 5 PF jars is this 2 parts vermiculite 1 part water and 1 part BRF (additionally you can add 1 tablespoon of gypsum for 5 jars)
|
Shea25
Just some guy
Registered: 01/27/09
Posts: 7,772
Loc: Westcoast Canada
|
Re: Adding gypsum to brf cakes [Re: Sgt. Frost]
#12648853 - 05/29/10 02:19 AM (13 years, 9 months ago) |
|
|
I find it helps tonnes, it adds calcium and sulfur they help the development of the mushroom,
Gypsum(calcium sulfate dihydrate) is used to boost production, helps keeps grains from sticking,and keeps ph swings down to a minimal, its not used to change the Ph of anything.
Hydrated lime(Calcium hydroxide) is used to change the Ph in CASINGS not bulk to more of a base/alkaline state 7-8PH,
Oyster shell flour(Calcium carbonate) is a long term Ph adjuster by the time it take affect your flushes will be done
|
Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
|
Re: Adding gypsum to brf cakes [Re: Shea25]
#12649606 - 05/29/10 09:12 AM (13 years, 9 months ago) |
|
|
Hello all,
It occurs to me that I have a gypsum question too.
I bought a relatively large bag of "garden gypsum" and came to find that it was not entirely a powder. If has small (~1-4 mm or so) stones in it.
Should I be buying a mortar and pestle?
Thanks!
JD
-------------------- Boyd Rice told my brother that life is a corny pack of freesakes Myco-tek.org
|
wygram
Myconaut
Registered: 01/28/07
Posts: 573
|
Re: Adding gypsum to brf cakes [Re: Javadog]
#12649624 - 05/29/10 09:18 AM (13 years, 9 months ago) |
|
|
Quote:
Javadog said: Should I be buying a mortar and pestle?
Nah. This stuff dissolves easily in water. Boil some coffee, strain and mix 50/50 with water, and gypsum. Then use this to hydrate the vermiculite before you slowly add the BRF.
-------------------- Changing your mind is one of the best ways of finding out whether or not you still have one.
|
Javadog
Continuing along
Registered: 05/03/10
Posts: 7,385
Loc: USA
|
Re: Adding gypsum to brf cakes [Re: wygram]
#12649662 - 05/29/10 09:28 AM (13 years, 9 months ago) |
|
|
Quote:
wygram said:
Quote:
Javadog said: Should I be buying a mortar and pestle?
Nah. This stuff dissolves easily in water. Boil some coffee, strain and mix 50/50 with water, and gypsum. Then use this to hydrate the vermiculite before you slowly add the BRF.
To confirm, the suggestion is to use the coffee liquid not the grounds.
If I am using it to "hydrate the verm" then it must be the former.
Thanks!
P.S. I just noticed that this site's spell checker sees "verm" as a word. LOL!
-------------------- Boyd Rice told my brother that life is a corny pack of freesakes Myco-tek.org
|
|