yes,you can...can pumpkin as long as you leave it in chunks. Pureed pumpkin is dangerous as you can't th get the temperature hot enough in either water bath, or pressure cooker it is too dense. It's easier to puree and freeze. I ruined 13 quarts of pumpkin not realizing you can't do this, I went to get a jar to make a pumpkin pie to notice a white substance that looked like wax in my jars. I started researching canning pumpkin and discovered my mistake.

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