why frozen stuff fries so well?

Joined Sep 29, 2002
Tonight i was bored so i thought i'd try to experiment with a few types of potatoes and techniques for making french fries. I was hoping to be able to make them like a fast food place. I also just got a nice mandolin so i was excited about that too. Anyway, I used russets and white potatoes. I cut them and then boiled them till cooked but still firm. Then i cooked some that were at room temperature and i also froze some. The frozen ones were sooo good and the room temp ones were not great. Why is that? They were a bit greasy because the temp. dropped too far, but that will be easy to fix next time. thanks

Joined May 26, 2001
Great experiment! You lived up to your name :D

Okay, question time: did you do the room temp/freezing thing with BOTH kinds of potatoes? That is, did you do room temp russets, frozen russets, room temp whites, frozen whites? Which of the frozen were so good? My one guess is that the frozen ones were drier -- freezing dries things out, if they are exposed to the cold air.

There's a big difference in water content and starchiness between russets and white potatoes. Russets are relatively dry, and the flesh becomes flaky when properly cooked; white potatoes have more water content, and are more "waxy" in texture. That matters when you're making fries.

I've never thought of boiling the potatoes first -- usually the first cooking ("blanching") is done in oil. But I did something like that the other night with yuca -- boiled the wedges until almost done, then drained them well and fried them -- and they were GREAT.

Keep experimenting. It's what makes cooking so cool ;)


Staff member
Joined Oct 7, 2001
Suzanne, though most of us were taught to blanch our fries in oil, I believe that most industrial made fries are indeed blanched in water first. It really doesn't matter that much which way you do it. The most important thing is to get those potatoes cooked first without developing any kind of crust that will hold the moisture in. As for why the frozen ones came out better, I think I would agree with you that they were drier and thus ended up more crispy, IMHO.
Joined Sep 29, 2002
Yes, i used both russets and whites when they were frozen. I like the white potatoes better, plus i kept having trouble with over cooking the russets, the whites are easier to use and they taste better.


Joined Nov 24, 2000
I allways thought that for some reason frozen potatoes cooked the way Cookinschool described was because of the ice crystal
formation on the surface allowing some air (as opposed to covered with water)to balance the hot oil/water interaction and allow an even sear.Good question,now I'll be thinking about it:confused:
Joined Nov 19, 1999
This is why I love cooking so much. It's actually a science. :bounce: :bounce: :bounce:
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