Why does fondue sometimes "curdle" and what can I do to prevent it?

Why does fondue sometimes "curdle" and what can I do to prevent it? - Contemplative ethnic woman with coffee and bike walking on pavement

Once when I was making a pretty standard fondue (50% gruyere, 50% emmenthal, white wine) the cheese somehow "curdled" and became a mix of a slightly fondue-tasting liquid and a rubbery ball of cheese, completely useless for fondue purposes.

Why and how does this happen? Was it the quality of the cheese, did I overheat the wine before adding the cheese, or did I add too much/too little cheese at once?



Best Answer

Normally, you start adding the cheese when the wine is simmering and stir regularly as you add it. If necessary, you can add a tablespoon of corn starch dissolved in some white wine to homogenize the mixture.




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How do you keep fondue from curdling?

Mix a tablespoon of cornflour with a tablespoon of cold water and stir this into the fondue a little at a time, until the fondue comes together. You could also try tossing the grated cheese with the cornflour from the recipe before making the fondue as this can help to keep the mixture more stable.

Why does my cheese fondue curdle?

White wine has a pH of 3 to 4 and is acidic enough to curdle milk and the milk proteins in cheese. The key to success is to choose a wine that is not too "dry", heat it first to drive off the volatile acids and then gradually add the grated cheeses while stirring constantly. If the cheese curdles you're done.

How do you Unclump fondue?

  • Step 1: Warm Up Fondue on Low Heat. You shouldn't work with cold or room temperature fondue. ...
  • Step 2: Add Cornstarch, Lemon Juice and White Wine. ...
  • Step 3: Bring to a Gentle Boil. ...
  • Step 4: Stir Constantly. ...
  • Step 5: Serve While Hot.


  • Why is my fondue grainy?

    Dairy sauces are prone to becoming grainy or gritty, and it's due to curdling. Dairy products like cheese sauce are made from fat and milk. The proteins contained in the mixture have a tendency to try to separate. Too much heat, not enough fat, or too much acid are usually the main reasons graininess occurs.



    Why Does Milk Curdle When It Goes Bad?




    More answers regarding why does fondue sometimes "curdle" and what can I do to prevent it?

    Answer 2

    Cheese sauces will curdle more easily if they are not acid enough.

    I struggled with homemade mac-n-cheese until someone pointed this out to me. The wine that Zippy suggests is one solution to adding acid without undesirable taste.

    Answer 3

    White wine has a pH of 3 to 4 and is acidic enough to curdle milk and the milk proteins in cheese. The key to success is to choose a wine that is not too "dry", heat it first to drive off the volatile acids and then gradually add the grated cheeses while stirring constantly. If the cheese curdles you're done. I've never been able to reverse it. Start over.

    Answer 4

    As soon as the wine is simmering, you add a tablespoon of corn starch dissolved in some cold white wine. Stir in order to make a very light "sauce". Then you add the grated cheeses. So the best way to make cheese fondue is not to add a cornstarch solution afterwards as so many recipes tell you to do, but before you add the grated cheeses.

    Answer 5

    Add cheese more slowly. And more importantly: keep stirring. The Swiss give the fondue a little stir every time they dip the bread into the pot ... you get more cheese on your piece of bread, and help keep the cheese in the pot smooth.

    Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

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