How about Partial Mashing?

[mpaniagua]

I have the following recipe:

B3 English Pale Ale PM
8-C Extra Special/Strong Bitter (English Pale Ale)



Size: 3.5 gal
Efficiency: 65.0%
Attenuation: 75.0%
Calories: 187.74 per 12.0 fl oz

Original Gravity: 1.056 (1.048 - 1.060)
|===================#============|
Terminal Gravity: 1.014 (1.010 - 1.016)
|==================#=============|
Color: 11.9 (6.0 - 18.0)
|===============#================|
Alcohol: 5.55% (4.6% - 6.2%)
|=================#==============|
Bitterness: 43.26 (30.0 - 50.0)
|==================#=============|

Ingredients:
2.5 lbs Maris Otter (2-row)
5.0 oz Cara-Pils Dextrine Malt
5.0 oz Munich Malt
0.0 oz Whirlfloc - added during boil, boiled 20.0 min
1.0 ea White Labs WLP002 English Ale
3.0 lbs English Light Extract (MoreBeer)
0.66 oz Challenger (8.0%) - added during boil, boiled 60 min
1.33 oz East Kent Goldings (5.0%) - added during boil, boiled 10 min
0.66 oz East Kent Goldings (5.0%) - added during boil, boiled 1 min
4.0 oz Caramel Malt 40L
0.5 lbs Carastan Malt

Schedule:

Results generated by BeerTools Pro 1.0.9

I'm doing a partial mash, that is, I'm mashing the grains in about 1 gallons of water between 140-157 F. for about 40-60 minutes. The I sparge with about 1 gallon of water at 140-157 F. I add enough wather to hit the 3.5 gallons,bring the wort to a boil, add 1 lb LME and hops.

My mash efficiency is about 65% or little more. The LME efficiency is higher.

What efficiency do I use?

Also, what would your suggestions be for the schedule?

thanks

Marcelo

[slothrob]

When you do a partial mash, the efficiency is only applied to the grains. So just go with 65% and don't worry about the extract, it won't be affected by the setting you use.

[mpaniagua]

thanks!