Yes, we are here!

At FERMENTATION and MOTHER EARTH NEWS, we have been educating folks about the benefits of self-reliance for 50 years. That includes researching and sourcing the best books and products to help individuals master the skills they need in times like these and beyond. Our online store is open and we are here to answer any questions you might have. Our customer service staff is available Monday through Friday from 8a.m.-5p.m. CDT. We can be reached at 1-800-978-7464 or by email. Stay safe!

Piima Butter Recipe

Learn how to make the tangy, buttermilk-like culture known as Piima, and for a delicious substitute for sour cream or creme fraische.

| April 2019

Image by Vlad Nordwing from Pixabay

Piima (pee-ma) is a culture based on the extract of the butterwort plant. Some sources suggest that using piima to make dairy products originated in Scandinavia when farmers noticed that milk curdled faster from cows that grazed on butterwort, a northern European wild herb. The culture was then extracted carefully and used in making butter, cultured cream, and buttermilk. In Scandinavia, it also became a practice to pour fresh milk or cream over the butterwort leaves before making dairy products with it. Either way, using piima to make butter is an extremely simple process. Products made with the piima culture will have a slight tang, similar to buttermilk. Piima can be purchased through mail-order herb distributors or on the Internet. It comes in a cream form.

Yield: about 2 cups

Prep time: 30 minutes


  • 2 tablespoons piima culture (in the form of a cream)
  • 4 cups (2 pints) heavy cream


1.) Put the culture into a clean quart jar. Add the cream and stir. Screw on the lid and store at 70 to 75 degrees Fahrenheit (on top of the refrigerator is a good spot) until the mixture begins to thicken, about 24 hours

2.) After the mixture has thickened to a custardlike consistency (about 1 day) remove a few tablespoons as a starter for another batch if desired. Store the starter in an airtight jar in the refrigerator.



May 16-17, 2020
Nashville, Tennessee

EVENT UPDATE: Unfortunately, we've had to postpone our Tennessee FAIR to 2021 due to COVID-19.


Become a Charter Member Today!


Discover how easy crafting your own money-saving fermented masterpieces can be. 

Become a member today and save as much as 25% off the newsstand price! Get a one-year membership for only $29.95!

As a member of the Fermentation community, you’ll also receive a passport to an array of added benefits specifically catered to food enthusiasts. It all starts with your quarterly magazine package – four handsome premium issues a year that you can confidently reference in the kitchen and proudly display on the coffee table.

Facebook Pinterest Instagram YouTube Twitter

Free Product Informationfermentation

click me