What is "a cup" ?

kev0360
kev0360 Posts: 3 Member
edited November 18 in Recipes
Many recipes seem to use this expression, is there a size or weight for this?
«1

Replies

  • NaturalNancy
    NaturalNancy Posts: 1,093 Member
    8 oz in 1 cup
  • estherdragonbat
    estherdragonbat Posts: 5,283 Member
    8 fl oz, 250 mls, 16 tbsp
  • SolotoCEO
    SolotoCEO Posts: 293 Member
    a cup is a non-metric liquid measurement. It is not a weight measurement.
  • Alatariel75
    Alatariel75 Posts: 18,341 Member
    In the USA a cup is 227ml (Imperial cup)
    In Australia, it is 250ml (Metric Cup)
    Other countries have various other measures of a cup (200ml in Japan, for example)
  • CyberTone
    CyberTone Posts: 7,337 Member
    edited May 2017
    The definition varies by country.

    Since MFP is US based, many of the entries for recipes will be using the US Customary Cup, which is defined in the US as 8.0 fluid ounces.

    However, as used on US Nutrition Facts labels for liquids, a cup is defined in US regulations as 240 milliliters, which is about 8.12 fluid ounces.

    https://en.wikipedia.org/wiki/Cup_(unit)
  • Lounmoun
    Lounmoun Posts: 8,423 Member
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/
  • kev0360
    kev0360 Posts: 3 Member
    Oh so that's that cleared up!
  • dfwesq
    dfwesq Posts: 592 Member
    If you need a rough approximation, there are around 4 cups in a liter.
  • Francl27
    Francl27 Posts: 26,371 Member
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/

    A 'dry' measuring cup is still 8 fl oz. There's no difference between that and a liquid measuring cup. I've seen this notion on these boards before and I have no idea where people got that idea from.

    I use this chart

    http://www.kingarthurflour.com/learn/ingredient-weight-chart.html

    But you have to keep in mind that a lot of times the recipes that give volume instead of weights for solids can give different results when you convert in grams (I've had to throw away some bread dough because clearly for that recipe they had packed the flour to 140g minimum per cup because my dough was soup using the standard 120g 'cup' equivalent). I'm not sure where All Recipes got that 128g per cup thing for flour though, considering that every single brand of flour says that one serving is 1/4 cup (30 or 31g) on the package.
  • yellingkimber
    yellingkimber Posts: 229 Member
    Francl27 wrote: »
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/

    A 'dry' measuring cup is still 8 fl oz. There's no difference between that and a liquid measuring cup. I've seen this notion on these boards before and I have no idea where people got that idea from.

    I use this chart

    http://www.kingarthurflour.com/learn/ingredient-weight-chart.html

    But you have to keep in mind that a lot of times the recipes that give volume instead of weights for solids can give different results when you convert in grams (I've had to throw away some bread dough because clearly for that recipe they had packed the flour to 140g minimum per cup because my dough was soup using the standard 120g 'cup' equivalent). I'm not sure where All Recipes got that 128g per cup thing for flour though, considering that every single brand of flour says that one serving is 1/4 cup (30 or 31g) on the package.

    Nope, there is a difference. The difference is that they're designed to fit the ingredients that they're trying to measure better than their counterpart. Click. Of course, a scale is more accurate than both, but if you try to bake with a liquid measuring cup for dry goods, you're not going to have a fun time. My aunt has made peanut butter cookies to prove it (not on purpose).
  • CharlieBeansmomTracey
    CharlieBeansmomTracey Posts: 7,682 Member
    In the USA a cup is 227ml (Imperial cup)
    In Australia, it is 250ml (Metric Cup)
    Other countries have various other measures of a cup (200ml in Japan, for example)

    well it says its 236.59 ml for the us. that said my milk,oj,etc say 8 oz or (240ml), yet all my measuring cups say 235ml on them.227 converts to 0.9594728901082199 in cups so it varies in the US per liquid I suppose. a bottle of hint water is 16oz and says (474ml) which would be 237 ml per 8oz. confusing Id say lol so its true that everything is an estimate in this regard
  • CharlieBeansmomTracey
    CharlieBeansmomTracey Posts: 7,682 Member
    Francl27 wrote: »
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/

    A 'dry' measuring cup is still 8 fl oz. There's no difference between that and a liquid measuring cup. I've seen this notion on these boards before and I have no idea where people got that idea from.

    I use this chart

    http://www.kingarthurflour.com/learn/ingredient-weight-chart.html

    But you have to keep in mind that a lot of times the recipes that give volume instead of weights for solids can give different results when you convert in grams (I've had to throw away some bread dough because clearly for that recipe they had packed the flour to 140g minimum per cup because my dough was soup using the standard 120g 'cup' equivalent). I'm not sure where All Recipes got that 128g per cup thing for flour though, considering that every single brand of flour says that one serving is 1/4 cup (30 or 31g) on the package.

    how is 8 fl oz the same as 8 oz of something dry? http://www.thekitchn.com/whats-the-difference-between-ounces-and-fluid-ounces-224303
  • Francl27
    Francl27 Posts: 26,371 Member
    Francl27 wrote: »
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/

    A 'dry' measuring cup is still 8 fl oz. There's no difference between that and a liquid measuring cup. I've seen this notion on these boards before and I have no idea where people got that idea from.

    I use this chart

    http://www.kingarthurflour.com/learn/ingredient-weight-chart.html

    But you have to keep in mind that a lot of times the recipes that give volume instead of weights for solids can give different results when you convert in grams (I've had to throw away some bread dough because clearly for that recipe they had packed the flour to 140g minimum per cup because my dough was soup using the standard 120g 'cup' equivalent). I'm not sure where All Recipes got that 128g per cup thing for flour though, considering that every single brand of flour says that one serving is 1/4 cup (30 or 31g) on the package.

    Nope, there is a difference. The difference is that they're designed to fit the ingredients that they're trying to measure better than their counterpart. Click. Of course, a scale is more accurate than both, but if you try to bake with a liquid measuring cup for dry goods, you're not going to have a fun time. My aunt has made peanut butter cookies to prove it (not on purpose).

    .. it's still a cup. 8 liquid ounces. Although I admit that it never even occurred to me to use a 'wet' measuring cup instead of a 'dry' one for dry food. Or to 'tap' the cup to make more sugar/flour fit (what's the purpose of that anyway?).
    Francl27 wrote: »
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    There is a dry measuring cup though which is different than a liquid measuring cup. It is a standard size kitchen tool but the weight would depend on the item put into it and how it packs into the cup.
    http://dish.allrecipes.com/cup-to-gram-conversions/

    A 'dry' measuring cup is still 8 fl oz. There's no difference between that and a liquid measuring cup. I've seen this notion on these boards before and I have no idea where people got that idea from.

    I use this chart

    http://www.kingarthurflour.com/learn/ingredient-weight-chart.html

    But you have to keep in mind that a lot of times the recipes that give volume instead of weights for solids can give different results when you convert in grams (I've had to throw away some bread dough because clearly for that recipe they had packed the flour to 140g minimum per cup because my dough was soup using the standard 120g 'cup' equivalent). I'm not sure where All Recipes got that 128g per cup thing for flour though, considering that every single brand of flour says that one serving is 1/4 cup (30 or 31g) on the package.

    how is 8 fl oz the same as 8 oz of something dry? http://www.thekitchn.com/whats-the-difference-between-ounces-and-fluid-ounces-224303

    Who even said that?
  • VeryKatie
    VeryKatie Posts: 5,961 Member
    edited May 2017
    8 fl oz, 250 mls, 16 tbsp

    237 ml in a us cup
    250 ml in a metric cup

    Google will probably answer these questions.

    For water at 4°C, 250 ml (1 metric cup) will weigh 250 g. This is not true for any other substance.

  • kev0360
    kev0360 Posts: 3 Member
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?
  • Alatariel75
    Alatariel75 Posts: 18,341 Member
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    That's definitely the most accurate way
  • Stockholm_Andy
    Stockholm_Andy Posts: 803 Member
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    Historically people didn't always have a set of kitchen scales so using a measuring cup was the next best thing. Having a recipe that said add 1 cup of flour would still be "fairly" accurate.

    Why it's still used I've no idea. Especially when you see entries like "Carrots - 1 cup".

  • Francl27
    Francl27 Posts: 26,371 Member
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    Beats me. It's actually kinda funny because in France we have those measuring cups with just different markings for the type of thing you have in it - liquid, flour, sugar etc. Nobody's ever questioned what's the 'dry' or 'liquid' measuring cup there, it's just one cup for everything, and they are tall like liquid measuring cups here.

    Guessing it's cheaper than to buy a food scale, or at least it was 15 years ago when I lived there and scales were not necessarily accurate - probably why most recipes still use cups here nowadays. Hopefully in 10 years things will change.
  • dutchandkiwi
    dutchandkiwi Posts: 1,389 Member
    edited May 2017
    a cup is a size related to volume. It is a non metric SI unit and used in some countries only.
    Because it is a volume size it cannot be converted to weight with any degree of certainty unless you know the (bulk) density of the product you are converting. The same recipes will use teaspoons, table spoons etc It is basically the old-fashioned way a kitchen used to work. To me it always feels as a little bit of this and a larger bit of that type cooking.
    As a cup is a volume based old system it can be used for liquids as they do convert to ml. However do note not all cups are created equal there is a difference in cup size between the different countries (UK/US)

    The rest of the world uses grams if they want weight and ml or l if they want volumes.
  • dutchandkiwi
    dutchandkiwi Posts: 1,389 Member
    edited May 2017
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    Historically people didn't always have a set of kitchen scales so using a measuring cup was the next best thing. Having a recipe that said add 1 cup of flour would still be "fairly" accurate.

    Why it's still used I've no idea. Especially when you see entries like "Carrots - 1 cup".


    The countries that use them are still not metric - stuck in old sizes systems
  • MsHarryWinston
    MsHarryWinston Posts: 1,027 Member
    250ml

    The one true cup! MOAHAHAHA!
    Yes, I am Canadian, lol.
  • jwcanfield
    jwcanfield Posts: 192 Member
    Easy to solve. Go to your local favorite grocery or discount store. Get a set of dry measuring cups for .........dry ingredients. A set of liquid measuring cups for........liquid ingredients. Can't tell the difference. Ask for help and you'll be all set!
  • livingleanlivingclean
    livingleanlivingclean Posts: 11,751 Member
    jwcanfield wrote: »
    Easy to solve. Go to your local favorite grocery or discount store. Get a set of dry measuring cups for .........dry ingredients. A set of liquid measuring cups for........liquid ingredients. Can't tell the difference. Ask for help and you'll be all set!

    I have never seen separate dry/wet cups. They often sell measuring jugs with the measurements up the sides, but the mls are the same as our measuring cups. (although they also show pints, and fl oz. Not that I have any use for those)
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    Lots of home cooks in the US don't have scales, so they use cups.

    I dislike cups for dry ingredients.
  • Wynterbourne
    Wynterbourne Posts: 2,235 Member
    jwcanfield wrote: »
    Easy to solve. Go to your local favorite grocery or discount store. Get a set of dry measuring cups for .........dry ingredients. A set of liquid measuring cups for........liquid ingredients. Can't tell the difference. Ask for help and you'll be all set!

    I have never seen separate dry/wet cups. They often sell measuring jugs with the measurements up the sides, but the mls are the same as our measuring cups. (although they also show pints, and fl oz. Not that I have any use for those)

    The cup in the front is a dry measuring cup, the cup in the back is a wet/liquid measuring cup.


    vie23n50hk94.jpg
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    kev0360 wrote: »
    So the idea of a liquid volume is clear but why use a cup for solids such as spinach, why not just the weight?

    Historically people didn't always have a set of kitchen scales so using a measuring cup was the next best thing. Having a recipe that said add 1 cup of flour would still be "fairly" accurate.

    Why it's still used I've no idea. Especially when you see entries like "Carrots - 1 cup".


    The countries that use them are still not metric - stuck in old sizes systems

    It's not that. We use cups instead of oz because many won't be able to easily estimate the oz of flour or carrots or whatever they are using.

    Metric would be mL (which our cups for liquid tend to have on them). Dry cups would be oz or grams if weighed. The cup is an alternative to oz (or g), not because we use oz.

    (I prefer grams to oz for cooking, but that's just not the issue.)
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    We may all be saying the same thing, but if it is water a cup is 8 oz.

    If it is oil, it's not 8 oz.

    I think what Francl was saying is that the volume of a dry cup and cup for liquids is the same.
  • Francl27
    Francl27 Posts: 26,371 Member
    lemurcat12 wrote: »
    Lounmoun wrote: »
    kev0360 wrote: »
    Many recipes seem to use this expression, is there a size or weight for this?

    If it is a liquid a cup is 8 oz.

    We may all be saying the same thing, but if it is water a cup is 8 oz.

    If it is oil, it's not 8 oz.

    I think what Francl was saying is that the volume of a dry cup and cup for liquids is the same.

    Yeah my point is that a cup is 8oz, whether it's liquid or dry... it still holds 8 LIQUID ounces... and you can still use a 'dry' cup for liquids (and I honestly still don't see why you couldn't use a 'liquid' cup for flour or sugar, but whatever).
  • lemurcat12
    lemurcat12 Posts: 30,886 Member
    Yeah, I use a dry cup for liquids, since my liquid cup has a leak and I keep forgetting to replace it.
This discussion has been closed.