Ricotta and mascarpone are messy to measure in measuring cups, so I'd rather use a scale. How much does one cup of each weigh?
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My measuring cup has 4 cups capacity (its tall) so you cant just jam some cheese into it and then skim off the top like you would do with flour in a dry measuring cup. I need to shape the cheese into the bottom which is messy. Either way this is not what I asked. I find weight measurements far more convenient than volume measurements, hence the question.– Bar AkivaJun 10, 2016 at 15:14
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Use a dry measuring cup and a rubber spatula. You don't need to use a wet one... they have the same volume. The different types of cheese have different masses... so there's no one perfect conversion.– CatijaJun 10, 2016 at 16:47
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1@BarAkiva I think a lot of the comments were more based on confusion about the way the question was phrased; I edited to help out with that.– Cascabel ♦Jun 10, 2016 at 19:02
2 Answers
I don't have mascarpone to check, but the Internet says that there are on average 225 grams per cup. Mascarpone being mainly a mix of water (density 1 g/cm^3) and fat (density 0.9 g/cm^3), this sounds about right.
I don't think it is possible to give a reliable conversion for ricotta. First, many countries don't have normal ricotta, so people use all kinds of substitutions, frequently not being aware that they are not the same thing. So it is possible that whatever you can buy in your supermarket under the name "ricotta" is not the same thing as whatever the recipe author can buy. Second, real ricotta is made from whey, and the amount of whey left in the cheese varies, so you will have a different amount of water between brands, which will change the density.
With this difference, I guess you could just assume that ricotta has the density of 1, measure out 235 grams and call it good enough. This will usually be a different amount from what the recipe author uses - but then, so will be measuring out a cup by volume.
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1USDA says ricotta is 246 g/cup. Sargento's whole milk and light, Sorrento's part-skim, and Trader Joe's fat-free are all 248g/cup. Trader Joe's whole milk is 240g/cup. I'm sure there's a bigger range once you go beyond US ricotta, but that's a really solid ballpark.– Cascabel ♦Jun 10, 2016 at 18:58
Most American recipes use volume instead of weight for measurement, which means there's often not an exact measurement in weight for the recipe. Your best bet would be to find out what kind of cheese it is calling for, find the density of that cheese, and then go from there. Also whether the cheese is shredded, still in a block of some sort, or if it's a wet and clumpy cheese like ricotta will play a significant role in density as well.
I would suggest getting a measuring cup, measure and weigh a cup of cheese several times, then average out your measurements so that you can just use weight next time you want to do the recipe.