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Amazon Shop for: Agar, Petri Dish, Potato Dextrose, Scales

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InvisiblePeterthinks
(Caulking) gun for hire

Registered: 11/10/04
Posts: 2,378
Scales suck.Cooking measures for PDA agar
    #3411690 - 11/26/04 11:49 AM (12 years, 11 days ago)

I have access to a scale but got sick of borrowing it to measure this.
1 Liter water
300 G potatoes
17-20 G Agar
2 G Brewers Yeast
10 G Dextrose
Here are cooking measures that make the same measurements.
Put 3 cups of water in a 4 cup measuring cup.
Cut up one large red potato(unpeeled)and push the chunks into the water till it reads 4 cups.
pour it in a pot.
Add 1 more cup of water so your 1 cup of potatoes are being boiled in 4 Cups of water.
Boil for an hour and drain.
Keep the water,eat the potatoes.
Add water to bring up the level to 4 and 3/4 Cups.
The following are LEVEL measures...
Drag the back of a knife over a heaped measuring spoon to make it flat.
2 Tablespoons + 1 Teaspoon of Agar
3/4 Teaspoon (1/2+1/4)Brewers Yeast
1 Tablespoon +1 Teaspoon of Dextrose
mix the dry.
Heat the potato water in the microwave or on the stove till hot again.
Mix the dry ingredients together then add the dry to the water while stirring.
Pour it sterilize it and use it.
:jester:


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


Edited by Peterthinks (11/26/04 11:49 AM)


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Invisibleandjor
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Registered: 11/26/04
Posts: 121
Loc: Here
Re: Scales suck.Cooking measures for PDA agar [Re: Peterthinks]
    #3411779 - 11/26/04 12:12 PM (12 years, 11 days ago)

How many petri dishes can you get from this?


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Offlineiamthecheeseman
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Registered: 10/04/04
Posts: 33
Last seen: 10 years, 11 months
Re: Scales suck.Cooking measures for PDA agar [Re: andjor]
    #3411821 - 11/26/04 12:24 PM (12 years, 11 days ago)

whats this used for? whats this have to do with a scale?


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InvisiblePeterthinks
(Caulking) gun for hire

Registered: 11/10/04
Posts: 2,378
Re: Scales suck.Cooking measures for PDA agar [Re: andjor]
    #3411831 - 11/26/04 12:28 PM (12 years, 11 days ago)

Depends on the size of the dish.
It makes a liter of stuff.
thats a lot of dishes and testtubes!
I have about 20 ten centemeter dishes and I use less than half of it and pour em deep.
lets me neglect my cultures for a long time if they have a lot of foo:jester:d to carry on.


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


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Invisibleandjor
Stranger
Registered: 11/26/04
Posts: 121
Loc: Here
Re: Scales suck.Cooking measures for PDA agar [Re: Peterthinks]
    #3411941 - 11/26/04 01:06 PM (12 years, 11 days ago)

Is this your prefered agar?
Thanks for the recipe, foaf was looking for a simple pda agar recipe, and your measurements really help for those without a scale.


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InvisiblePeterthinks
(Caulking) gun for hire

Registered: 11/10/04
Posts: 2,378
Re: Scales suck.Cooking measures for PDA agar [Re: andjor]
    #3412202 - 11/26/04 02:17 PM (12 years, 11 days ago)

It isn't a preference...It's the first one I've tried,but I haven't found anything that wouldn't grow on it!.
So I guess I'm rather fond of it.:jester:
I've grown about 12 food mushroom strains on it and it keeps well.
I don't prepare or strain the water by the way...If there is mud on the potatoes or eyes growing on it or bugs or mold I just let it into the mix...more nutrients I say!
Just stir before you pour. or all the stuff at the bottom gets into the last dish.
And don't let the temp get too high(over 15 PSI)it will caramelize cause there is a lot of sugar and starch in it.
By the way this is the least amount of Agar I will use(17 Grams)...feel free to up the measurement a bit if you like a firmer PDA,add a 1/4 to 1/2 teaspoon of more agar if you like but it will cost you.
I also like to make liquid innoculant in slants so I use less agar so the stuff dissolves easier into the innoculant.


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


Edited by Peterthinks (11/26/04 02:24 PM)


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InvisiblePeterthinks
(Caulking) gun for hire

Registered: 11/10/04
Posts: 2,378
Re: Scales suck.Cooking measures for PDA agar [Re: iamthecheeseman]
    #3412216 - 11/26/04 02:20 PM (12 years, 11 days ago)

Most Agar recipies are in Grams...and most people don't have an accurate scale.You need agar to grow clones of mushrooms.Or test spore syringes.:jester:


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


Post Extras: Print Post  Remind Me! Notify Moderator
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Amazon Shop for: Agar, Petri Dish, Potato Dextrose, Scales

Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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