Refrigerated pasta with white "slime" on it...?!


Question: Yesterday I cooked up a batch of pasta for spaghetti bolognaise. Quite an amount was left over, so I decided to stick it in the fridge for later.

Although there is no smell, and my companion has already reheated and ate some of the leftover pasta without any consequences, it's still a little gross to see bits of what seems to be white slime on the pasta. Is this congealed water or something? I couldn't find anything on the internet about it.

Thanks for your help!


Answers: Yesterday I cooked up a batch of pasta for spaghetti bolognaise. Quite an amount was left over, so I decided to stick it in the fridge for later.

Although there is no smell, and my companion has already reheated and ate some of the leftover pasta without any consequences, it's still a little gross to see bits of what seems to be white slime on the pasta. Is this congealed water or something? I couldn't find anything on the internet about it.

Thanks for your help!

It actually sounds like some of the starch from the pasta. When you cook it and then let it get cold in the fridge, the excess starch (like the foam you sometimes see when you are boiling it) solidifies and can look like this. If you reheat it in the microwave or in boiling water; the white should disappear.

It's just a bit of water that separated from the sauce. Nothing to worry about unless it's several days old and then I'd throw it out.

your pasta sauce mostlikely had water and oil base in it.

water and oil seperate once left at a stand still(in the freezer or sitting out) so that would explain the "slime" on it.

completely normal. also happens with other things like lasagne etc....

nothing to worry about.

If the pasta had a chance to dry out a little or if it was a little warm before you put it in the fridge, it likely got moist from condensation in the container, and it reabsorbed the liquid and got puffy on the top layer.


Pasta has a life expectancy of 48 hours after cooking, cooling to 40 degrees within 4 hours, and storing in the fridge.

The pasta is fine. This is just the starch on the outside of the pasta. If you store your leftover pasta in a small amount of water or coat it with a tiny amount of oil you won't see this.

or whilst your straining the pasta in the sink run hot water from the tap over the pasta, this will wash away the excess starch and wont appear the next morning in the fridge :)





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