castings n coir ???
Posted 08 February 2005 - 05:38 AM
I am planning on using a 50/50 mix of worm castings and straw as the substrate in my next grow. I have read that pasteurizing castings via hot water pasteurization in a pillow case can get messy; namely the castings turn to mud and leach out of the pillow case. I have no access to an oven in my current residence, so I cannot pasteurize the castings there. However, I do have a 5 gallon pot that can hold 6-1qt jars, and a small alcohol stove capable of bringing several gallons of water to a boil.
I was thinking of using the following setup to pasteurize my substrate mix without allowing the castings to leach.
I plan to:
-soak the the straw for several hours
-add lime to boost pH
-then mix straw, castings and water, bring to a little wetter than field capacity
-pack into jars
-Heat until core temperature in center jar is 160-180*F, hold there for 90min.
-Allow to cool
-Mix with grain spawn.
Should this setup be effective in pasteurizing the castings/straw mix without allowing the castings to leach? Should I simply leave the lids on the jars loose, or just take off the lids and tin foil them? Will the jars burst? Any tips, ideas, or suggestions are welcome. Thanks
Posted 08 February 2005 - 07:26 AM
Put filtered lids on the jars, and cover with foil. No need for a thermometer.
Posted 08 February 2005 - 03:57 PM
I really wish I could do the steam pasteurization, the idea is so perfect. When I first came across the plans in the archives I was so excited, having just run into contam. problems with straw I attempted to pasteurize in hot water, with insufficient equipment. Maybe sometime in the future I will build the steamer, when space and cost aren't such a big issue.
Rodger, should I use tyvek or polyfil lids on the jars? Which will hold the moisture in the jars better?
Posted 08 February 2005 - 04:02 PM
No tyvek or polyfil lids on top, you're spawning out of the jars, the substrate doesn't stay there unless you want to spawn into it and mix it up to fruit from the jars.
Posted 08 February 2005 - 07:54 PM
Posted 08 February 2005 - 08:21 PM
One thing I love about this is that it is a relatively mess free tek, you can do most of the clean up in the kitchen sink.
Posted 08 February 2005 - 08:29 PM
actualy I dont fill it so full that the jars tip easily, I do have holes in the lids because I dont have lids without holes , lol.
or as an idea, you could put some foil balls in the pot to steady up the jars, something like that..
Posted 08 February 2005 - 09:38 PM
Posted 08 February 2005 - 10:15 PM
When you put the lids on, do you put them upside-down or right-side-up?
Posted 08 February 2005 - 10:18 PM
Posted 08 February 2005 - 10:25 PM
Posted 14 February 2005 - 08:15 PM
Also, how long after full colonization should I crumble it and case it with coir and worm castings? I'm guessing 2-3 days full colonization of one of the cakes. Most of the others are moving slower.
Posted 14 February 2005 - 08:49 PM
Posted 14 February 2005 - 09:06 PM
Posted 14 February 2005 - 10:21 PM
Posted 14 February 2005 - 10:47 PM
As for casing layer most peeps would mix verm /coir or verm/peat ..Overlay is more likely with pure coir casing according to some....
Your substrate size should b 2-4 times the volume of the cake ..
Posted 08 March 2005 - 03:15 PM
Does coir/worm poo generally NEED to be PH adjusted?
SHOULD it be?
To what range?
IS coir/poo more prone to trich than other substrates in your opinion?
Posted 08 March 2005 - 03:22 PM
Posted 08 March 2005 - 03:30 PM
It never hurts to add a pinch of lime. Mycelium likes a basified environment. Coir/poo as a substrate should be fine....as a casing however, anything with nutrients is a contam risk. You gonna use the coir/poo as a cake or...?
Used as substrate in a cat litter pan, spawned with cloned 'texas oyster' WBS, uncased through first flush (because I for some reasonget a MONSTER first flush uncased with this setup), rinsed, dunked, then cased with a thin layer of STERILIZED verm for later flushes.
This is the collective advice I have been given for my skill set, chosen methods and available products.