Need help...never done a partial mash

**fat x nub** · 07-01-2008, 01:32 AM

Ok so i took beersmith and added ingredients and everything but i have no idea on how to make the wort using a partial mash. The recipe has flaked rice in it and i can't steep the rice flakes so can somebody tell me how i go about doing a partial mash?? Here are the ingredients:

2.00 lb Light Dry Extract (8.0 SRM)
3.30 lb Pale Liquid Extract (8.0 SRM)
1.00 lb Rice, Flaked (1.0 SRM)
0.25 tsp Irish Moss (Boil 10.0 min)
5.00 gal Atlanta, GA Water
1 Pkgs SafAle English Ale (DCL Yeast #S-04) Yeast-Ale

thanks

**Revvy** · 07-01-2008, 01:41 AM

This isn't really an ingredient list for a partial mash...In a partial mash you replace a large quantity of malt extract with a Mashable base grain such as 2-row. (in your case along with the rice.) You mash that to get the majority of your fermentable wort, then finish it off with an addition of dry (or liquid) extract.

Read these articles for a explanations of how to do a PM

http://byo.com/feature/986.html

http://www.byo.com/feature/1536.html

Also, take a look at my Brown Ale recipe http://www.homebrewtalk.com/f66/old-bog-road-brown-ale-pm-extract-w-grain-61591/?highlight=Brown

you will see different versions...From extract w/grain, through several partial mashes in various grain/extract ratios, to all grain...It might help you understand how to put together a pm recipe...You'll see how the more base malt (2-row) I mash, the less DME I use, yet the OG and the IBU's in beersmith stay the same....

also use the search feature there's plenty of info on here.

**fat x nub** · 07-01-2008, 02:10 AM

im a little confused but i think i got the general idea. i think i am going to get another pound of flaked rice and add that and the DME and mash that and then boil the wort and add the liquid extract with 30 minutes left in the boil. What temp and how long should i mash the flaked rice and DME?

**Revvy** · 07-01-2008, 02:51 AM

Quote:

Originally Posted by fat x nub

im a little confused but i think i got the general idea. i think i am going to get another pound of flaked rice and add that and the DME and mash that and then boil the wort and add the liquid extract with 30 minutes left in the boil. What temp and how long should i mash the flaked rice and DME?

I honestly think you are a lot confused...Did you read the articles I linked?

What kind of beer are you trying to make?

First off...Flaked Rice is an Adjunct, not a base malt. It won't convert without the help of a malt like 2-row.

Secondly, DME does not get mashed, because it already is an extract...It's like liquid malt extract, only dry. The emphasis is on the word Extract a partial mash or an allgrain Extracts sugar from grain through the conversion of the starch through heat...LME and DME are already converted at the matser.

I think you need to take a look at the fundamentals of allgrain and partial mash to get a feel for the process...

Start with this chapter

http://www.howtobrew.com/section3/chapter14.html

Then these two...

http://www.howtobrew.com/section3/index.html

http://www.howtobrew.com/section3/chapter18-3.html

**fat x nub** · 07-01-2008, 02:55 AM

i read both aricles but i was still confused. i know that u dont mash extract but something has to go into the tun with the flaked rice so i figured why the not the dry extract...i think im gunna kinda re-do this recipe and make it all extract instead cuz this is confusing. im just gunna have to read that whole book

...but i want to still use the flaked rice...can i put it in a muslin bag and add during the boil?

EDIT: i think im going to blend up the flaked rice and add it with the rest o the dry rice extract and also add the light liquid extract to the boil

**TexLaw** · 07-01-2008, 12:42 PM

You need to read those articles again, as well as Revvy's posts.

You are correct that something has to go into the mash tun with the flaked rice, but DME is not the right thing. It will do nothing good for you. It does not contain the active enzymes to convert the starches in the flaked rice to fermentable sugars. In fact, adding the DME to the mash will reduce your mash efficiency. Do not add extract to your mash.

Likewise, do not add the rice to rice extract. You are going the wrong way with that. The flaked rice must be mashed. Otherwise, you will have a bunch of unconverted starch in your boil. That will do nothing good for you. It will not ferment. It will create a haze in your beer and, possibly, cause mild indigestion for anyone who drinks your beer. That is not good. If you are not going to actually mash your flaked rice (or any flaked grain), you are better off leaving it out.

Just for completeness, steeping your flaked grains in a muslin bag is not mashing them. For a proper and effective mash, you need to a certain concentration of grain in your water and mind temperatures much more than with steeping. You also need some sort of "base malt" that contains diastatic enzymes (i.e., the ones that break starches down to sugars) for mashing.

So, read up a little more, ask whatever questions you may have, and have some fun brewing.

TL

**TheJadedDog** · 07-01-2008, 01:00 PM

First of all, what are you trying to accomplish with all that flaked rice? What style are you trying to make? Where are the hops?

It sounds to me like you might want to experiment with steeping grains before moving to partial mash; many of the extract recipes in the database here use steeping grains if you want to take a look. Using steeping grains is a nice way to improve your beers and makes the step to all grain or partial mash much easier IMO.

**Revvy** · 07-01-2008, 01:06 PM

He's moved on since I went to bed, to this thread, as well as jumping to AG...

http://www.homebrewtalk.com/f36/beersmith-coverted-recipe-i-dont-know-if-its-right-70973/

I'll say it again, I think you need to get a grasp of the fundamentals of the process before you start slapping ingredients together. Perhaps consider working with one of AHS or Northern Brewer's PM or AG kits, before attempting to formulate a recipe.

**Bobby_M** · 07-01-2008, 02:32 PM

Also, I'm going to plug my all grain "white paper" which might give a little extra perspective.

http://www.suebob.com/brew/allgrain.htm

**Revvy** · 07-01-2008, 02:37 PM

Quote:

Originally Posted by Bobby_M

Also, I'm going to plug my all grain "white paper" which might give a little extra perspective.

http://www.suebob.com/brew/allgrain.htm

And a very good one at that!