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Thread: 29 oz can of pumpkin = ?? cups real pumpkin

  1. #1
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    Question 29 oz can of pumpkin = ?? cups real pumpkin

    Not to say the stuff in the can is not real, but I have some pumpkin that I bought at the farmers market last weekend and cooked on Wednesday night. My recipe calls for a 29 oz can of pumpkin but since I have a real pumpkin I am thinking that 8 oz is 1 cup and so 29 oz would be a little less than 4 cups. Is my math right??
    “When one door of happiness closes, another opens; but often we look so long at the closed
    door that we do not see the one which has been opened for us.”

    Helen Keller (1880–1968)

  2. #2
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    Your math is right, but your underlying assumption (that pumpkin and water have the same density) is not. You can't sub liquid volume for a known weight of a solid....for instance, a cup of flour is about 5 ounces.
    I think that the big can of pumpkin has about 2.5 cups in it. But that is just a guess....

  3. #3
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    1 cup of canned pumpkin is 245 grams, slightly above 8 1/2 ounces. In terms of volume measurement, 29 ounces would be closest to 3 1/3 cups.

  4. #4
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    I knew I wasn't thinking of the whole picture - thanks for the info!
    “When one door of happiness closes, another opens; but often we look so long at the closed
    door that we do not see the one which has been opened for us.”

    Helen Keller (1880–1968)

  5. #5
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    Well a 28 oz can of tomatoes is 3 cups. I was making something that called for a can of tomato puree and 3 cups os water. I added the water to the can to "rinse" it out and the 3 cups fit exactly. So, assuming that it is based on volume and not weight, then that same can of pumpkin is 3 cups.

    By the way LaraW, would you mind sharing the recipe you're making! Or is it something you don't want WaraL to know about?

  6. #6
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    I'm making pumpkin butter. I'm listening to the first batch's lids "pop" as they seal. The jars for the 2nd batch are in the canner sterilizing right now.

    Here's the recipe:

    For 5- 1/2 pint jars

    1 29 oz can pumpkin puree (btw, I used 3.5 cups - I found a different recipe that said a 15 oz can was 1 3/4 cups and since 2 cans would be pretty close to 29 oz, I just doubled the 1 3/4 C.)
    3/4 C apple cider
    1 1/2 C sugar
    2 tsp ginger
    2 tsp cinnamon
    1 tsp nutmet
    1/2 tsp ground cloves

    Combine everything in a saucepan, bring to a boil. Reduce heat and simmer for 30 min or until thickened (this did not take 30 min)

    Fill 1/2 pint jars to within 1/4 inch. Cover and process for 10 minutes.
    “When one door of happiness closes, another opens; but often we look so long at the closed
    door that we do not see the one which has been opened for us.”

    Helen Keller (1880–1968)

  7. #7
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    I have a recipe that calls for 1-2/3 cups, and I think the large can just works for double that recipe. That would mean 3-1/3 cups, so I think we're all pretty close.

    I was looking at the pumpkin butter recipe and thinking about making some too. How did yours turn out?

  8. #8
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    Originally posted by Beth
    I was looking at the pumpkin butter recipe and thinking about making some too. How did yours turn out?

    It turned out great! I got 9 out of 10 jars to seal, so I consider it a success!
    “When one door of happiness closes, another opens; but often we look so long at the closed
    door that we do not see the one which has been opened for us.”

    Helen Keller (1880–1968)

  9. #9
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    Was that 2 batches, or does it make more than it indicates?

    Nine out of ten sounds perfect -- you have one to enjoy without feeling guilty about opening it right away!

  10. #10
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    Actually, yes it was 2 batches. It does make exactly 5 1/2 pint jars.


    Between 2 batches, I had less than 1/2 C left over.
    “When one door of happiness closes, another opens; but often we look so long at the closed
    door that we do not see the one which has been opened for us.”

    Helen Keller (1880–1968)

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