Friday, March 23, 2012

How can one determine if a potato is suitable for French fries?

Question

I often make French fries by cutting potatoes into long strips, adding a bit of oil and spices, then baking them in the oven. Sometimes, this tastes very good. Unfortunately, most of the time, it tastes terrible. After baking the potatoes, I often discover that the potatoes have a very strange flavor and texture. They are somewhat sweet and the color after baking is bright yellow. I have tried baking without spices, and have found they are not to blame for the strange flavor.

  • Am I encountering a different variety of potato or a different kind of vegetable that on the outside looks like a potato?
  • Is it possible these potatoes were harvested at the wrong time, but the outside color is nearly the same?
  • How can I identify which potatoes make French fries?
Asked by Village

Answer

Good Eats(Alton Brown) has some good descriptions of the various difference's between potatos. He has an episode dedicated to potatoes. Main thing is the starch content in them. He has an example of each of the three groups (High, Medium, Low), includign a brief description and sample application. He mentions mentions frying in the High Starch content group, specifically Russets. He then has another episode simply about frying, where he actually talks about French Fries and again mentions the Russet (High Starch).

While you can make fries out of different types of potatoes (some of the more "all purpose" potatoes), if you want a really good classic french fry, you're going to want to look for a Russet, with a similar starch content.

Here's a page that lists some of the more common varieties. Maybe you can look to see what you bought? The age will probably affect it. A younger potato will in fact be sweeter

So, to answer your specific questions. I'm betting you did in fact buy a potato. It's probably just a sweeter variety. If it doesn't say at the market where you bought it what kind they are, I'd ask the people who work there. Also, look at the third link I have above, it does have a few pictures as well as good descriptions on what they look like.

Answered by talon8

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