[singfrograin]

since i don't need to culture a lot of flies i was wondering if i can freeze the leftovers of this mix for later use. Would freezing it decrease the efficacy of it or mess with the yeast? Or should i just half the recipe?

The Power Mix
"In a pot bring the following to a boil.
2 cups water
2 cups vinegar
1/8th cup Dark molasses
1/2 can of grape juice concentrate
2-3 overripe mushed up bananas

After bringing this mixture to a boil, add the dry material

1/2 cup malt of meal
2/3 cup potato flakes
1/3 cup Brewers Yeast (the key ingredient)

Place about 2 inches of medium in each qt size jar, and sprinkle maybe an 1/8th teaspoon of activated yeast on the top.* A day later, 20-30 flies are added."

 

[bobbittle]

If you sump the yeast in while the water is above 140 or so the yeast will die anyway.

Yeast will survive being frozen though.

 

[ChrisK]

I make DOUBLE that amount, put about an inch in the ff cups, then freeze the cups, each week I take as many cups out of the freezer and into the refrigerator to defrost a day before making cultures as I need

 

[Ed]

If you sump the yeast in while the water is above 140 or so the yeast will die anyway.

Yeast will survive being frozen though.

In this case, brewer's yeast is deactivated yeast which means it isn't alive to begin with....

 

[Pumilo]

The deactivated brewers yeast is primarily a source of protein.

 

[singfrograin]

Ahh ChrisK that's a good idea!

I figured the yeast would be used as protein in this mix but i wasn't sure - i knew boiling it would kill the yeast anyway but i figured i'd see what everyone had to say.


Thanks all!