Archive for May, 2012


Blanching French Fries

Friday, May 25th, 2012

Q. How do I blanch fries before frying them to make the best fresh cut fries?

A. First, cut and rinse the fries to get rid of any excess starch or sugar and then store them in water with some concentrated lemon juice (1 tablespoon to one gallon of water ratio). Drain the water, and then fry until the fries have a glazed look and are a little limp. How long it takes for the fries to become limp depends on the variety of the potato and cut of the fry. Pull the fries out and place uncovered in shallow bus tubs. Cool the fries to room temperature and then refrigerate. Put lids on the tubs until you are ready for the final frying.

Choosing a Dry, Fluffy Potato

Tuesday, May 22nd, 2012

Q. How can I be sure to find a potato that will be dry and fluffy when cooked, rather than gluey or wet?

A. First, be sure to look for the “Grown in Idaho” seal on the potato bags to make sure the potatoes are from Idaho. We grow a lot of potatoes, but only one third of the total crop. Look for the Russet Burbank variety of potato as this potato typically has high solids and bakes up dry and fluffy. The Russet Norkotah variety is currently a favorite of retail produce buyers as it always has a nice, even-colored skin and oval shape. The Norkotah bakes up a little moister than the Burbank.

Check out these links for more information on these two varieties:

Russet Burbank
Russet Norkotah

Preparing the Perfect French Fries

Thursday, May 17th, 2012

Q. I am in charge of preparing many orders of French fries for our local charity.  I’ve been told to blanch the fries in advance but that seems to be the only advice I get.  How long do I blanch?  Once blanched, I’m sure I drain but what then, Refrigerate, Freeze?  I am looking at maybe 15 to 30 servings per weekend event.

A. First, you should cut the fries and rinse them to get rid of any excess starch or sugar.  Then, store them in water with some concentrated lemon juice (1 tablespoon to one gallon ratio), drain and fry.  Be sure to pull them out once the fries have a glazed look and they are little limp (depends on the cut for how long it takes).  Then place them in bus tubs, not too deep, uncovered.  Cool to room temperature, then it’s ok to refrigerate. Put lids on the tubs until needed for final frying.

Potatoes Turning Black After Being Cooked and Peeled in a Commercial Peeler

Tuesday, May 15th, 2012

Q. We need some help identifying a problem with the potatoes turning grey to black in color after cooking.  These are potatoes that are cubed and cooked in a combi steamer open pan during the cooking process.

A few variables:

  1. Fresh whole potatoes are stored in a walk-in cooler at approximately 42°F
  2. Potatoes are peeled in a commercial potato drum type peeler
  3. They are cooked uncovered in standard hotel-type deep metal casserole pan

The grey to black coloring always occurs after cooking.  Sometimes the potatoes are prepped the day before cooking and held in a large plastic container with water and ascorbic acid added (lemon juice), but do not discolor prior to cooking.

A. I think it might be the drum peeler. Sometimes the bruising from tumbling in the peeler will not show up until cooked. This typically does not go through the whole potato, just the outer edges. Otherwise, I’m at a loss… Why not try hand peeling part of an order and putting the rest in the drum peeler to see if there is a difference.  Also, check the temperature of the potatoes as you may want to store them near the plastic strips at the entrance to the walk-in versus back and up high where no air is circulating. Dropping a carton 2-3 feet stresses the potatoes too, causing bruising: http://foodserviceblog.idahopotato.com/its-natural-to-have-potato-bruising/

History of Idaho French Fries

Friday, May 11th, 2012

Q. Can you tell me about the history of French fries in Idaho?

A. French fries, though named for their country of origin, were transformed in the 1950s into the world-famous fries that put Idaho potatoes on the map. A couple of enterprising Idahoans discovered that Idaho potatoes were perfectly suited to create the ultimate French fry, so they set out to bring Idaho potatoes to kitchens across America. It wasn’t without some trial and error, though.

If you’ve tried to make French fries in your own kitchen at home, you may have discovered that you can’t turn fresh potatoes into the ones you find in the frozen aisle at your local grocery store. If you try to freeze fresh potatoes, they’ll eventually turn black. Many an unhappy cook has learned this lesson the hard way. In order to prevent potatoes from turning black, you need to place them in water with some lemon juice or vinegar added.  Then, you need to partially cook the potatoes, a process called blanching, before you freeze or refrigerate them. 

This was how the Simplot Company, founded in 1923 by a World War II veteran from a small town in Idaho named J.R. Simplot, revolutionized the frozen French fried potato industry. Ray Dunlap, a young chemist, figured out that by partially cooking the potatoes, they could then be air dried and frozen for frying later.