Wrinkle Test for Jam

This is the test I most often use to determine if my jam is ready. When you start to cook the jam, put a saucer or small plate in the freezer to chill.

When you think the jam may be ready, put a little dab of the hot stuff on the chilled saucer, and put it back in the freezer for one minute. Take your jam kettle off the heat while you do this so it doesn’t cook down further. When the minute is up, check the jam: when you push at the blob with your fingertip, do little wrinkles show on the surface? If so, it’s ready. If not, it needs to cook a bit more.

One Comment

  1. Thanks for the tip. I haven’t tried making jam but this is helpful to know if the jam is ready or not.

Leave a Comment

Your email address will not be published.


This site uses Akismet to reduce spam. Learn how your comment data is processed.


I’m Maurita Plouff, and I write about cooking and preserving the local harvest in Southeast Michigan. Any recipe you find here is something I have cooked myself, and enjoyed, and think you might like too. I invite you to try the recipes, and leave comments.

Get all the Good Stuff

Never miss a post! Add your email here.

Blog Posts by Month