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12-31-2007, 10:34 AM
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#1 (permalink)
| | Seasoned Veteran
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Weight Statistics June 11,2007, lost 36 Lb. before surgery Start Date:
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 |  Question about protein drink breaking down with heat
Does anyone know if the protein powders break down if you put it into hot water? Or anything hot. I have heard that but I would like to know if anyone heard this. I was thinking why not because their are so many recipes out their to make cookies with the protein powders and you have to bake them and by baking their is heat. I really like the cho. flavored protein powders with hot coco and that gives me protein while I enjoy the hot coco.
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12-31-2007, 11:14 AM
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#2 (permalink)
| | Seasoned Veteran
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Hmmm I Dont Know But I Have Ordered Protein Hot Cocoa And Of Course You Have To Make It With Hot Water So If It Were To Break Down They Wouldnt Be Able To Sell It Stating It Has Like 20 Proteins For A Prepared Cup. Also I Have Also Purchased Protein Hot Oatmeal, Again I Have To Cood That As Well. But It Is A Good Question
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12-31-2007, 11:31 AM
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#3 (permalink)
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it should say on the back what temp its best at. unjury says do not use HOT water. best if used with water 130 degress or less. each brand is different though. see if there is a toll free number on the back of your powder and call them. i'd be curious to see what they'd say about abking with it.
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12-31-2007, 11:38 AM
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#4 (permalink)
| | Big Loser
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I heard that they will break down in heat. I have bought some protein concentrate powder that is plain and I add it to soups, chilis, etc. This one does not break down in heat. It is recommended for baking
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01-01-2008, 02:42 PM
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#5 (permalink)
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not too sure...let us know if you find out
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01-01-2008, 09:08 PM
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#6 (permalink)
| | Super Moderator
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Proteins are altered irreversibly by heat.
Think, when you cook raw meat, it changes color and hardens. This is due to the alteration.
So, if you want to add protein powder to your recipe when you are cooking, check to see the temperature range that it stays stable, and use the ones that are *heat resistant* when adding to your baking.
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12-24-2009, 07:41 AM
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#7 (permalink)
| | WLS Master Guru
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|  How do protein change when heating?
Hi Doc (and everybody),
Old topic but it relates to the questions I have.
After looking at lots of tables in the internet I came to an average that meat have 30g protein / 100 g. Now, is this raw or after cooking?
I have found plenty recipes to roast/cook things. Do I have to count proteins differently then? How do I know how much? Does the same apply to cheese? Egg? Milk? Etc?
I have a nice recipe here to try of a 'cheeseburger in the oven'. At first sight it will be high protein as you have ground beef, egg and cheese but since it's going to the oven, will it change then?
I'm confused. HELP!
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12-24-2009, 07:50 AM
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#8 (permalink)
| | Super Moderator
Join Date: Nov 2005 Location: Tokyo, Japan
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You should be able to find tables that will tell you the amount of protein when both raw and cooked. Raw, the amount of protein is around 20% of the whole weight witth meat. When cooked, because the water in the raw meat evaporates, the percentage can go up to just under 30% of the weight. However, this also brings up the percentage of fat, too.
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12-24-2009, 07:59 AM
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#9 (permalink)
| | WLS Master Guru
Join Date: Nov 2009 Location: São Paulo, Brazil
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Weight Statistics Jan 7th, 2010 Surgery Date:
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Thanks for the info Doc.
Yes, I could find information about ground beef, roasted, just wasn't sure if the source would be good enough or someone just considered the same as raw... 
Anyway, what about cheese? I can't find a table saying: fresh mussarela, two minutes in microwave or heat up to 160C... Hehehehe! Would the same rule apply? Water out so protein going up?
If I get a pack of low fat milk and just leave it boiling until half of it is left, the final product will have double protein then (and double fat too)?
If that's it I understand, if not I'm still confused.
Edit: Forgot another question: is there a limit temperature that will just kill the proteins or they don't work like enzymes? (damn, I knew I should have paid more attention to those Biology classes at school)
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12-24-2009, 08:40 AM
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#10 (permalink)
| | Super Moderator
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Food, any food includes a number of nutrients, not just one single thing. Also, with most foods, the *ingredient* that is included in the largest amount is water. Heating removes this water from the food, but heating also can break up the nutrients or fuse them together. There is no one single equation to measure how much water evaporates, in what amount the concentration or ratio goes up or down. The compositions are too complicated.
Try online calculation sites such as www.fitday.com. Such sites give you how much your various nutrition intakes are. They also give you calories, but don't focus on that.
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