The following is from an article on the brewery
technical library on
belgian styles...
Take from it what you will but they recommend the rate of 0.5 and 1 gram/liter of bitter orange peel.
<A name=wit>White beers
Description
Phil's improved AHA listing:
- 1.044-1.055
- 4.5-5.5% ABV
- 15-22 IBU
- 2-4 SRM.
Cloudy yellow color, coriander flavor and mild acidity essential. Wheat and bitter orange peel flavors desirable. Mild hop flavor and aroma ok. Low to medium bitterness. Low to medium body, medium or higher carbonation. No <A href="http://brewery.org/brewery/library/mashtun/kleyn.html#diacetyl">diacetyl. Low to medium esters. These beers should be average in gravity with a definitely hazy yellow color and a dense, rich, dazzlingly white head. May or may not have a slightly orangey aroma (due primarily to the coriander), or mild hop aroma (preferably floral rather than spicy). Body should be medium or a bit lighter, and the carbonation should be reasonably aggressive. Bitterness should be low, mild acidity is allowed, but no alcohol flavor. Esters are ok, but shouldn't predominate. Should be very drinkable. I prefer my white beers with lots of coriander.
Brewing Method
All grain brews should use 50% barley malt and 50% unmalted raw wheat, although a small percentage of oats (5-10%) can be used to add some silkiness. Extended protein rests (45 mins-1 hour) are needed to keep the mash from turning into glue and to allow sparging, but excessive rests cause unwanted clarity in the finished beer. Almost any yeast seems to work, so people should get credit for creative choices. Since hop levels are low, the variety is relatively unimportant. Classic varieties like Hallertau, Saaz and East Kent Goldings are common for bittering. Brewers should be aware that grinding raw wheat by hand is excruciating; find someone with a mechanized mill.
Coriander in the boil is essential: use 1 gram or more per liter of finished beer, boiled for 5 minutes or so. Coarsely ground whole coriander and boils over 15 minutes result in low coriander flavor. Curaao (bitter) orange peel is also traditional, in amounts between 0.5 and 1 gram/liter. The peel can be boiled for longer if desired, up to about 1/2 hour. It contributes a rich herbal flavor similar to herb tea, and does not taste of orange.
Some homebrewers add lactic acid at bottling, which contributes acidity and helps bring out the other flavors. Amounts up to 1 cl/liter can be ok if given adequate time for the flavors to blend usually 1-2 months. Extract brewers will have a hard time getting the right haze, but otherwise are at no disadvantage.
Common problems
- Ham aroma. Many white beers have an orangey flavor from the coriander, some brewers use orange instead. Boiling Sunkist type orange peels and especially commercial dried peels imparts a ham-like aroma. Bitter orange can do this too, particularly when boiled for just a short period. Citrus zest can be used without too many problems.
- Lactic. Many Belgian whites aren't any more tart than a normal wheat beer, and acid additions can be overdone. In addition, acid additions need a lot of time to blend in with the other flavors. Watch out for very acid, dry tasting beers.
- Carbonation. Should be more than for the average pale ale, but not so much that it interferes with your ability to taste the beer. My guess is that 7/8 cup corn sugar (about 125 grams) per 5 gallons is about right.
- Too clear. Excessive protein rests or not enough wheat content are usually the culprits.