Chocolate mousse with cooked eggs?
Most recipes I have seen for mousse require you to use egg yolks and don't involve any cooking of the egg. It's my understanding that when an egg's yolk is still soft (or not cooked at all in this case), it hasn't been cooked long enough and can contain salmonella.
Is there any way I can still use eggs in my recipe but somehow ensure that I don't need to worry about salmonella?
I've tried looking for pasteurized eggs, but couldn't find them at any of my local supermarkets.
Best Answer
First of all, it is extremely rare for the yolk of an egg to become contaminated if the egg is reasonably fresh. Contamination only tends to occur when the egg is quite old and the yolk membrane weakens. (Source)
Now, that said, egg yolks begin to set at a temperature of 62° C (144° F), and salmonella can be killed at temperatures as low as 59° C (138° F), so it actually is possible to "cook" the yolk sufficiently to kill any bacteria without letting it set, but you have a very small window to work with, so you need to be careful. If the temperature is even 1° too low, you'll just be encouraging the spread of more bacteria, and if it's even 1° too high, you'll ruin your recipe because the yolk will set.
Nevertheless, if you have a reliable, uniform heat source, you could attempt to heat the egg to 60-61° C for about 1 minute.
Unfortunately, you won't be able to use the technique used in other recipes - such as Bavarian cream - of simply using the residual heat of the other wet ingredients to cook the yolk sufficiently for safety while not allowing sufficient time to set. Dark chocolate is the most heat-resistant but will easily burn at temperatures significantly above 50° C (125° F). Mixing the chocolate with cream may raise this temperature slightly, and I admit to not being certain of the exact amount, but I'm pretty sure it won't get you up to the required 59° C - and it really actually needs to be much higher than that because the temperature must stay that high for several seconds after adding the eggs.
So my advice to you is to either:
- Pre-cook the yolks very carefully to a temperature just below 62° C (use a thermometer!); or
- Use very fresh eggs from a reliable source; or
- Don't eat mousse made with egg yolks, if you can't tolerate the (very low) risk.
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Are raw eggs safe in chocolate mousse?
Mousse recipes that use raw eggs should be modified by heating the milk, eggs and sugar to 160 degrees F. Hillers recommends any recipe calling for raw eggs should be modified to either heat the eggs or to substitute a modified egg product. If your recipe can't be modified, Hillers advises finding a substitute recipe.Does mousse have raw egg in it?
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Answer 2
The egg yolks provide fat and act as emulsifier for the ingredients in the mousse, helping things blend well. There are fats and emulsifiers in chocolate, so you can get away without the yolks, just replace them by weight with cream and chocolate. The whites are a bit harder.
I have tried using the pasteurized egg whites that come in cartons. They don't whip as well, so I added a bit of unflavored gelatin to help build some volume and stability. The texture is a bit different; it ends up like the commercial chocolate mousse you will get at most restaurants.
If, for example, you follow David Lebovitz's recipe, you could use the 3 tablespoons of liquids any way you want. Some of it could be coffee or used to dissolve 1/4 pack of gelatin that you then add to the last stages of whipping the pasteurized whites.
On the in-shell pasteurized eggs. I have written to the company and looked in many local supermarkets, but have never been able to find them.
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.