High Altitude Baking: Breads, Cakes, Quick Breads, Cookies, Pies.

Climb every mountain, and you’re likely to find a frustrated baker.
That’s because most baking recipes are developed and tested for use from sea level to about 2,000 feet.
We’ve assembled some guidelines that should help you bake successfully above 2,000 feet.
Why Does Altitude Matter?
Liquids boil at lower temperatures {below 212 degrees}, and moisture evaporates more quickly at high altitudes-both of which significantly impact the quality of baked goods. Also, leavening gases {air, carbon dioxide, water vapor} expand faster. If you live at 3,000 feet or below, we suggest that you first try a recipe as is. Sometimes few, if any, changes are needed. But the higher you go, the more you’ll have to adjust your ingredients and cooking times.
A Few Overall Tips:
 
* Use shiny new baking pans. This seems to help mixtures rise, especially cake batters.
* Use butter, flour, and parchment to prep your baking pans for nonstick cooking. At high altitudes, baked goods tend to stick more to the pans.
* Be exact in your measurements {once you’ve figured out what they should be}. This is always important in baking, but especially so when you’re high up. Tiny variations in ingredients make a bigger difference at high altitudes than at sea level.
* Boost flavor. Seasonings and extracts tend to be more muted at higher altitudes, so increase them slightly.
* Have patience. You may have to bake your favorite sea-level recipe a few times, making different adjustments each time, until it’s worked out to suit your particular altitude.
* Find out exactly how high you are with a topographic map from the U.S. Geological Survey
or 888-274-8747, ask for customer service.
Breads:
 
* Cut back on the flour. Flours tend to be drier and will absorb more liquid in the low humidity of high altitudes. You may need less flour than the recipe calls for, so mix in about two-thirds, and then check the dough to see whether it looks and feels right before adding more.
* Keep an eye on the dough’s rise, and let it rise twice, even three times if necessary. Yeast dough’s rise more quickly-sometimes twice as fast-in the reduced pressure of higher altitudes. If dough rises much more than double, it could collapse. Check the rise after half the time specified in the recipe. The drawback of a short rise can be a muted flavor. If your bread doesn’t have a good, full sourdough or yeast taste, the next time you make the recipe, punch the dough down after the first fast rise and let it rise a second {even a third} time before shaping.
* Preempt the last rise. Instead of letting dough rise until doubled in volume, only let it rise by about a third. That will compensate for its tendency to over-expand in the oven.
* Add moisture to the oven. As wheat products bake, they are lightened, or leavened, as the heated moisture in them swells and forms tiny bubbles encased by thin dough walls. At high altitudes, moisture evaporates more quickly, and the surface of the bread dries out and crusts over before the inside has fully cooked-preventing the loaf from rising. Putting a pan of water on the oven floor or spraying the hot oven walls with water creates steam, which stops the evaporation in the bread and allows the interior to fully expand.
* Baking at a slightly higher temperature can help too.
{see Baking Charts}.
Cakes:
 
* At higher elevations, cakes are especially fragile. The adjustments you need to make depend on what makes the cakes rise.
* Cakes leavened by trapped air. Cakes such as chiffon, angel food, and sponge are leavened by air bubbles trapped in whipped eggs or egg whites. At higher altitudes, egg mixtures whipped to the maximum will collapse as the lower air pressure encourages the air cells to keep expanding. To account for this, whip the eggs a little less-to soft peaks instead of stiff ones for egg whites-to allow for expansion. Also, reduce the sugar slightly; this will help the whipped mixture to firm up at a lower temperature.
If the egg foam breaks, its drainage forms a rubbery layer-and the cake usually falls. A little additional flour will strengthen the cake, and baking at a slightly higher temperature will firm up the egg mixture faster.
* Cakes leavened by baking powder or soda. At high altitudes, a slight increase in egg and flour {along with the changes noted in the baking chart} produces effective results. All-purpose flour, because it has a stronger protein structure that holds up better at high altitudes, is usually a better choice than weaker cake flour. Also, the baking powder and soda need to be reduced, because the gases they produce expand so much more freely at high altitudes; they’ll burst through the cakes structure and cause it to fall the minute it leaves the oven.
Quick Breads:
 
The batters and doughs for muffins, pancakes, biscuits, and other quick breads contain less fat and sugar than those for regular cakes, and a minor reduction in baking powder may be all that is needed. But if results are unsatisfactory, try the other modifications suggested in the baking chart.
Cookies:
 
Cookies are relatively easy to make at high elevations. The main problem is that they tend to spread, especially if they contain a lot of fat, and their flavor may be more muted.
Prescription:
To slow down the spread, add a little more flour, slightly reduce the baking powder and soda, and bake at a higher temperature for a longer time. However, it sometimes also works to increase baking temperature and shorten the time; see chart.
Pies:
 
Crusts-especially the rims-tend to brown before the filling is cooked at higher altitudes, so shield the rim of your pie with foil {one easy way is to cut the center out of a square of foil and then set it over the pie}. And the bottom crusts tend to get soggy, so you can either par-bake them before filling, or start the pie off on the bottom shelf {right above the heating element} in a hot oven for the first 15 minutes and then move it to the center rack and finish baking at a more moderate temperature.
Also, consider sticking soft fruits, most of which will cook faster, before the crust burns, or parcooking the fruit before filling your pie shell. {The exception is berries, which actually cook slower at high altitudes. The lower boiling point means their juices won’t heat as quickly to soften the starch needed for thickening the filling}.
high-altitude-baking-tips
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High Altitude Adjustment Charts for Baking.

Ingredient/Temperature Adjustments for High Altitude Baking.

Ashley November Deep Dish Pumpkin Pie.

Makes one 9-inch pie, enough to serve 10 to 12 *

1 unbaked 9-inch Pie Crust, homemade or store bought
1 15-ounce can pumpkin puree *
3/4 cup sugar
1 1/2 teaspoons cornstarch
1/2 teaspoon fine sea salt
1 teaspoon ground cinnamon
1/4 teaspoon ground cloves
1/4 teaspoon ground ginger
1/4 teaspoon ground nutmeg
1/4 teaspoon ground allspice
1/4 teaspoon ground mace
1 teaspoon pure vanilla extract
1 1/2 cups whole milk
2 extra-large eggs
1. Position a rack in the center of the oven and preheat to 450 degrees.
2. Put the pumpkin, sugar, cornstarch, salt, cinnamon, cloves, ginger, nutmeg, allspice, mace, and vanilla in the bowl of a stand mixer fitted with the paddle attachment. Paddle at low-medium speed for approximately 2 minutes.
3. With the motor running, pour in the milk in two additions. Stop the motor, scrape the sides of the bowl with a wooden spatula, restart, and paddle for an additional 2 minutes. Add the eggs and paddle until absorbed, approximately 2 additional minutes.
4. Pour the mixture into a 9-inch pie crust in a pan and bake for 15 minutes, then lower heat to 375 degrees and bake until a finger dabbed onto the surface emerges clean, 30 to 40 minutes.
5. Remove the pie from the oven and let cool for 1 to 2 hours. Slice and serve right away, or cover with plastic and refrigerate for up to 3 days.

 Actually this recipe makes quite a bit of filling so be prepared.
* If using homemade roasted pureed