fermented mint

Preserving Mint with Fermentation

Fermented Mint and Ferment'n Home Fermentation Kit

The idea of foraged and found ferments has been on my mind a lot lately. I have been experimenting with more and more wild ferments in my own corner of the world while out there my global Internet buddies are doing the same. Colleen Codekas is working with cattails and Annie Levy is also experimenting with foraged ferments.

Finding small nourishment from wild plants is seasonal eating at its finest. It is interesting to watch the plants (and animals) and see how they react with the subtle changes in seasonal conditions. A good friend of mine spent a lot of time rehabilitating the creek on her property (translated this means a few years of tenacious blackberry removal.) I watched as the native plants came back to the land—trillium, California spikenard, hedge nettle, cleavers, and many others. One summer we were inundated with thick smoke from forest fires for over a month.  It was then that she noticed that the coltsfoot completely disappeared. She then observed a lone squirrel inside a thicket of willow stems tearing off small strips of the coltsfoot leaves and eating one after the other. Herbal medicine recognizes coltsfoot as a lung herb.

Our days have been unseasonably hot this summer and hovering around 15° F above normal—today it will be 108° F. (We live in Oregon not the Sonoran Desert.) Luckily our mountain mornings are still cool if we get up early enough. We do our chores and any gardening before breakfast. Recently, I was back inside bracing for another scorching day when Christopher came into the house like a cool minty breeze—literally. He had been out foraging for the goats* and had tramped through a patch of wild mint. That smell reminded me of the cooling nature of mint. Mint is refreshing and finds its way into many cuisines where the climate dishes out heat.

As soon as breakfast was consumed I went out to the small spring fed riparian area below our house and picked a basket of mint. It has been fermenting for two weeks and is now finding its way into all sorts of cool no-cook meals—most recently a chilled cucumber yogurt soup. Without further ado I present you with a recipe for fermented mint leaves.

Fermented Wild Mint
Makes about a half pint

Find wild mint along water ways; if you don’t have access to that, garden mint works just as well. The most important thing is that the mint has not begun to flower. Be sure to use the larger leafed mint (link) and not the small leafed wild pennyroyal (link), which can be toxic. The other thing about the wild mint that I have been using is that it is drier and the leaves did not release enough water to even dissolve the salt properly—hence the brine. 

8 ounces mint leaves, stems removed
½ teaspoon salt dissolved in 1/8 cup of unchlorinated water

Roughly chop the mint leaves and add salt-water solution. Massage this brine into the leaves (your hands will smell great) and allow to sit in a bowl, covered for about a half hour to work out more brine. 

Press into a jar. Top with a ziplock bag, or pack tightly into a small jar for the burp method, or use your favorite fermenting system. 

This will need to ferment about 2 weeks. You will know it is ready when the mint has turned color from the bright dark green freshness to a dull dark green, as in the photo above. It will taste lightly acidic. Refrigerate when ready to store. It will keep for at least one year. 

The ferment kit pictured here fermenting the mints appears to no longer be available.

*I know that sounds a little crazy but when we are on top of things we stack functions, in other words we feed our goats the blackberry canes that are always threatening to hide our fences and choke our waterways. It is better food for the goats than baled hay and helps us keep up with the blackberries an armload at a time. It’s also important to note we are not homestead overachievers we are generally not that organized.



The cool and wild side of fermenting :: Mint

There is a natural spring on our property. It is the center and heart of the property both metaphorical and physically. Christopher shares the day we were introduced to the magic of this spring through the wild peppermint. 

The day we found our farm, I had already given up. We had traveled south on Interstate 5 with our three small children and Kirsten pregnant with our fourth to be greeted by temperatures over 100 degrees and a landscape burnt crisp from the heat and lack of rainfall. Every house or property we had seen that day was either moldy, depressingly run-down, overrun with poison oak or a combination of all three. I wanted to retreat to the Willamette Valley, but Kirsten wanted to look at one more. After driving up Thompson Creek for nearly seven miles we arrived at what would become Mellonia Farm and our home. 

While I hiked the hills with the owner, Ron, to learn the borders of this hillside farm, Kirsten and the kids found refuge at the stream in the shade of a beautifully old and gnarled willow tree. There, the boys stripped to their skivvies and splashed in a stream lined with wild peppermint. Driving home that evening the peppermint from the sleeping children’s legs filled the car, and we knew we had found our new home.

Fast forward fifteen years as summer approaches and Southern Oregon is in a state of drought. The soil has been too dry to dig with a pick ax for at least a month, but the mint along the spring is vibrant, refreshing, and smells of water and relief.  It is time to harvest—some will be dried for tea and some I will preserve through fermentation. Fermented mint? Yup and it is really tasty.

Mint, like its family-member basil, has played a significant role in traditional herbal pharmacopeia throughout history. Its wonderful scent and flavor have also made it a leading player in the kitchen, adding a cool refreshing taste to dishes, as well as ferments. Of the many varieties of mint, spearmint, curly mint, and peppermint (the strongest flavor of the three) are the most common culinary types, but there are also fruity varieties, such as apple, pineapple, or orange mint. The flavor of the various mints holds up well in fermentation. If you are creating your own recipe, use similar quantities to those you would use in a fresh salad or veggie dish. Choose the type of mint that you have available or like best, and add it to the ferment when you combine the rest of your vegetables, just before salting. Chopping the leaves will release a little more flavor in the ferment. 

Fermented condiments tray with Celery-Mint Salad


Celery-Mint Salad

Cool, bright, and lively, this ferment will be a wonderful addition to a summer spread.

1 1⁄2 pounds celery, thinly sliced crosswise (including leaves)

1 bunch scallions, greens included, finely chopped

6 sprigs mint, thinly sliced

1 teaspoon unrefined sea salt


Prepare the vegetables and place in a bowl. Sprinkle in the salt, a little at a time, tasting as you go until it’s slightly salty, but not overwhelming. Massage the mixture and let sit, covered, for 30 minutes.

Pack the mixture, a few handfuls at a time into a 1-quart jar, pressing as you go to remove air pockets and release brine; because of the texture, it will take some effort to get it tightly packed. This pressure will release more brine. When the jar is packed, leave 2 to 3 inches of headspace. With store bought celery there will likely be a noticeable layer of brine, while homegrown may just barely cover the vegetables. Follow with a grape leaf or piece of plastic wrap to keep the veggies submerged under the brine. Because of the low brine content, make sure this is weighted well with either a sealed water-filled jar or a water-filled ziplock bag to act as a combination follower and weight. Set aside to ferment, somewhere nearby and out of direct sunlight, in a cool spot for 5 to 10 days.

Check daily that the celery is submerged, pressing down as needed to bring the brine
back to the surface. When it’s ready, this ferment will be crunchy, will taste of fresh and minty, and will have a mild, light sour flavor, very different from the sour boldness of most krauts.

If it’s sour enough for your palate, tamp down the ferment under the brine, screw on the lid, and store in the refrigerator. Because of its high natural nitrate content, celery keeps well if it remains submerged, and will last over 1 year—but you will want to eat it well before then.