Separated Egg Whites Compared To A Carton Of Egg Whites

Baking By cocobean Updated 30 Jul 2010 , 1:10am by _christina_

cocobean Posted 28 Jul 2010 , 6:10pm
post #1 of 20

I noticed today that if I separate 8 egg to use the 8 whites and measure them they equal about 1 cup. My carton of egg whites I bought at the grocery store says 4 egg whites measure about 3/4 of a cup. That isn't close at all. Am I using too many egg whites if I am measuring according to the carton? Or not enough if I am separating eggs myself? Anyone ever noticed this.

Also, I just made a 14"x2 square wasc cake using 8 separated egg whites and i also added 1 t. soda to the recipe. The cake is still sunk in the middle. I haven't used the egg whites only in that recipe before. I usually use 6 whole eggs but this time I want a whiter batter.

Experience with using the above recipe (wasc) and egg whites??

19 replies
2SchnauzerLady Posted 28 Jul 2010 , 6:26pm
post #2 of 20

Did you use regular egg whites or carton whites for the cake that sunk? It almost sounds like your eggs are small - recipes should specify the amount of egg whites rather than the number of egg whites! Macsmom and GrandmaG are the go to people for WASC recipes!

cocobean Posted 28 Jul 2010 , 6:41pm
post #3 of 20

I thought about that but my eggs were large to extra large.

KHalstead Posted 28 Jul 2010 , 6:59pm
post #4 of 20

I've wondered about the same thing!! Seems like the carton whites do yield a lot more egg whites to equal an egg than if you separate it yourself.

artscallion Posted 28 Jul 2010 , 7:01pm
post #5 of 20

A standard volume for one large egg (which is what most recipes call for) is 1/4 cup. Either a white or a yolk, separately is 1/8 cup.

I can't answer your question about substituting all whites for whole eggs in the WASC recipe though, because I don't know a thing about mixes. Hopefully someone will chime in.

Ruth0209 Posted 28 Jul 2010 , 7:01pm
post #6 of 20

Did you use a flower nail and/or bake-even strips? A 14" square is a big cake. If your oven is hot and baked the sides too much before the middle is done, the cake will sink in the middle. I bake WASC cakes at 325, and I use THREE flower nails and bake-even strips for a cake that big and mine never sinks. I use four whites from large eggs. I've never used the boxed egg whites.

KHalstead Posted 28 Jul 2010 , 7:36pm
post #7 of 20
Originally Posted by artscallion

A standard volume for one large egg (which is what most recipes call for) is 1/4 cup. Either a white or a yolk, separately is 1/8 cup.

I can't answer your question about substituting all whites for whole eggs in the WASC recipe though, because I don't know a thing about mixes. Hopefully someone will chime in.

So do you think that when the box says 1/3c is equal to one egg they're meaning the ENTIRE egg being substituted with whites or that it's equal to 1 white?

I would hate to be using twice as much whites as needed, always good to save when you can.

I get the equivalent of 4 dozen eggs (just the whites) for about $5 at Sam's Club, I can't buy 4 doz. eggs and separate them myself for that price and then I don't have to worry about what to do with all the yolks, or feel guilty throwing out yolks, plus the little cartons take up less room in the fridge/freezer than a carton of eggs do.

cocobean Posted 28 Jul 2010 , 7:37pm
post #8 of 20

Thanks Ruth, it's been awhile since I've made a 14" square. I did not use the bake even strips that I had. I think now that would have made the difference!! Duh! You can't ever loose concentration! icon_rolleyes.gif

Also, I did use one nail in the center. Maybe the three would be better. Too late now!

Thanks again!

artscallion Posted 28 Jul 2010 , 7:50pm
post #9 of 20


Originally Posted by artscallion

So do you think that when the box says 1/3c is equal to one egg they're meaning the ENTIRE egg being substituted with whites or that it's equal to 1 white?

I'd say so, Khal. I'd say 1/3 cup is about one whole extra large or jumbo egg. If you take a large, whole, uncracked egg and place it in your 1/3 cup measuring cup, you can tell that the egg would barely fill it.

I don't buy the egg whites in cartons. But I used to buy Eggbeaters which are all egg white, colored yellow to simulate a whole eggs. I remember the carton stating that 1/4 cup of all-whites eggbeaters = 1 whole egg in recipes. So, maybe that's what your carton is telling you. That if you want to substitute all egg whites for whole eggs, 1/3 cup = 1 whole egg.

LindaF144a Posted 28 Jul 2010 , 8:39pm
post #10 of 20

I actually weigh my eggs and think in ounces, not cup measurement.

1.75 ounces is a whole egg. 1 oz is the egg white and .75 is the yolk. This is pretty much the standard that I have read in several books, but you might find one or two that say 1.70. I weighed the egg brand I use and consistently got 1.75, so I use that.

If you are in doubt about the weight that you are using, you can weigh your egg weights - even the ones in the carton. That way you have doubt how much you are putting into a recipe.

Foxicakes Posted 28 Jul 2010 , 8:58pm
post #11 of 20

Actually, Cocobean, the problem could be one or more of a couple of things....
The MOST likely culprit is your "carton" egg whites... unfortunately, there is no telling what type of processing those things go through at the plant. Meaning, they probably beat them to loosen the proteins to make them easier to pour. Unfortunately, that process also makes the whites extremely unstable molecularly. (They DO seem to be awfully runny when they come from a carton.) Not to mention that they are most likely pasteurized also--which equals MORE changes in the molecular make up. IF that is the problem, you can TRY adding in 1 or 2 FRESH egg whites to the batter (put them in your liquid measuring cup and then just pour the remaining amount needed from your carton). This will provide undisturbed proteins that haven't had their structure altered and will help with stabilization. (So, why have they worked before?? Who knows...I could bore you with the me- I could talk for hours about this stuff!! LOL!!)

Other possibilities could be:

Over mixing the batter.

Under mixing the batter.

Back to "chemistry" in baking: The baking soda could have been too much or too little for the amount of flour being used in the recipe.

And, finally, my own personal favorite--I've been guilty of this too many times to mention---Opening the oven door before the cake has "set"... If I remember correctly, the standard time to wait before opening the oven door is 20 minutes for most cake sizes.

Anyway, I HTH!! Sorry if I was rambling...And, if you DO figure it out, would you mind sharing and letting us know what the culprit was??


Ruth0209 Posted 28 Jul 2010 , 10:59pm
post #12 of 20

Someone told me NEVER to open the oven until I can smell the cake baking. That's an old-fashioned way to do it, but it seems to work. You don't smell it until it's almost done.

cocobean Posted 28 Jul 2010 , 11:03pm
post #13 of 20

Thanks for all the feedback. Ruth I did have one more 14" round to bake so I did use the bake even strips on that pan and also on an 8" pan. Sorry to say it did not help as I had hoped! The 8" pan sunk even more than before I had used it. So I guess that was not the problem.

Desiree, I agree with alot of what you said about the carton of egg whites! I did use egg whites in the shell in this recipe though so I am wondering about the sinking middle still. I'm not sure about the bk. soda. Maybe it was to much or not enough? All I know is I don't get that kind of sinking when I use the 6 whole eggs in that wasc recipe. I just have not been liking the yellowish color of the cake. I do like the taste of the cake using the whole eggs though. Also, I don't think I over or under mixed. I mixed about 2 and 1/2 - 3 min. with that wasc recipe that calls for 2 cake mixes. Also, I know I did not open the oven door until the last 10-15 minutes of baking time

I'm just going to forget about using the carton of egg whites and stick with the eggs in the shell but I still need and expert that uses the 8 egg white wasc recipe and has no sinking!

Linda I'm going to try measuring the egg whites to. Thanks!

MissLisa Posted 28 Jul 2010 , 11:16pm
post #14 of 20

The WASC recipe I use calls for 8 egg whites and mine never sinks in the middle.

No baking soda in mine and I generally bake it at 300-315 degrees. It takes a looooong time to bake but I've never had the sinking problem.

As for all those egg yolks...........make Lemon Curd! icon_smile.gif

indydebi Posted 29 Jul 2010 , 12:12am
post #15 of 20

There are sugar cookie recipes that call for egg yolks only. Just search for "egg yolk cookie recipes"

I also use leftover egg yolks to make homemade egg noodles. These freeze up wonderfully!

I believe it was Melvira who just posted a thread about using carton'd egg whites and she loved them!

I used carton'd eggs in the shop and it was a fabulous time saver! Never noticed a difference in taste or performance of the cakes.

tesso Posted 29 Jul 2010 , 1:55am
post #16 of 20

I love using carton egg whites!! I just started using them 2 months ago.. I think it was melvira who suggested it to me. anyway.. I am in love with them.

I cracked 3 large eggs and the egg whites measured 1/2 cup. So I just substitute 1/2 cup egg whites (carton) and have never had a problem.. except when my sister asked what I did different because my cakes tasted much lighter/fluffier.. I didnt tell her.. icon_lol.gif

in my experience.. 1/2 cup carton egg whites = 3 large egg whites.

hollyml Posted 29 Jul 2010 , 4:03am
post #17 of 20

I haven't used the carton egg whites a lot, but it has frustrated me that the measurements they print on the carton are the equivalents for x number of WHOLE eggs -- not for x number of egg WHITES. And, of course, I've always used them as a substitute for separated egg whites.

I've done it infrequently enough that I've just guessed at the quantity, or looked up the equivalency in some other cookbook or something. And I haven't had a problem. But I've never used them for a white cake, only for frostings and fillings.

Ruth0209 Posted 29 Jul 2010 , 2:04pm
post #18 of 20

Sorry my suggestions didn't help. Maybe you have the opposite problem. Maybe your oven is too cool. Have you checked with an oven thermometer lately? I was having problems with my cakes until I determined that my oven runs 15 degrees cool. That makes a huge difference in performance! Now I just set it that much higher and it works fine. Better than the $200 they wanted to adjust the oven.

KHalstead Posted 29 Jul 2010 , 9:18pm
post #19 of 20

like tesso I've been adding 1/2 c. of the egg whites to equal 3 eggs and haven't noticed a difference in the performance of my cakes as far as raising/baking/sinking/taste/etc.

_christina_ Posted 30 Jul 2010 , 1:10am
post #20 of 20

I have used carton whites before and they are great. I always get better volume from fresh, though. As to why there is the amount issue could be because most carton whites do add stabilizers but I'm not real sure about it. I would follow their insturctions, though. But I always use 8 whites for 1 cup (with large eggs).

Your cake sinking, though, I think has more to do with leaving out the yolks rather than the whites measurement...unless I read your post wrong. You cut out a lot of fat by cutting them totally. Seems like a lot of structure was also lost because of that.

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