Di-ammonium Phosphate

[balconybrewer]

hi there,

where can i buy pure di-ammonium phosphate (DAP) i know you can get the yeast nutrient but i see there is alot of other junk in there, mosher calls for pure DAP and just curious as to where people buy this stuff from??

cheers
BB

 

[Wolfy]

Bintani sell it and (I think) they wholesale to some of the site-sponsor home brew shops.
(They also sell Yeast Nutrient too).

 

[MHB]

At a pinch Morgan's offer it in 5g sachets as yeast nutrient, in that form or in larger quantities it's widely available through retailers.

Personally I think the "Yeast Food" is a better option, as it provides a lot more than just Nitrogen. A good analogy would be Dynamic Lifter and Super phosphate, the more complex product will supply a lot of yeasts dietary requirements.

I'm not familiar with Mosher's comments; it would be interesting if you could cite the book and the context, if it's an older work, you might find things have moved on a bit. It might be in a context where it's the right choice so more information would be good.

DAP is useful, but you have to be very careful as it can be quite toxic to yeast especially if you use too much early in the brew.

There is some talk of it being banned in wine making as was Urea and for the same reasons.

MHB

Opps

ethyl carbamate is a fermentation by-product that is potentially carcinogenic, too much DAP or Urea under some conditions will provoke the yeast to make heaps not good.

M

 

[Wolfy]

Personally I think the "Yeast Food" is a better option, as it provides a lot more than just Nitrogen.

Or both in the case of mead.
I don't add DAP to beer, but I do use it when making mead since honey is nitrogen deficient compared to beer wort.

 

[bill_gill85]

I was reading the other day that Belgian Candi Sugar uses DAP to cause malliard reactions & invert the sugar. Pretty sure Mosher was mentioned in the same post.

 

[balconybrewer]

he states its use is his homemade candi syrup to cause the millard reaction and create flavours that are apparently not possible with simple caramelizing.

states it in radical brewing.

cheers

p.s. anyone else with a supplier?

 

[Greg.L]

Winequip sell dap, I think in 500g bags so probably a fair bit of postage, you have to give them a call.

 

[kirem]

If you have a local winery then just ask them nicely.

 

[Gopha]

Grape and Grain have it listed on their site. I do use it to make my candy syrup/sugar, works fine. Cheers

 

[Cortez The Killer]

1 kg Bag here

http://www.westbrew.com.au/showProduct/Win...Nutrient%29+1kg

Cheers