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Lacto-Fermented Green Beans Tutorial (aka: Pizza Beans)

Lacto-fermented green beans make a fantastic healthy snack. They’re tangy, flavorful and crunchy and can be flavored up countless ways. Fermenting beans produces a product that can be stored at cool temperatures for months, meaning one less thing you have to can, all while keeping the vitamins, living enzymes and probiotics intact.

A woman holding up a jar of fermented green beans.

Fermentation for long-term preservation is a method that’s just now coming back into popularity. Before refrigeration, our ancestors were preserving foods by fermentation for centuries.

Fermentation converts the sugars and other carbohydrates naturally present in food into alcohol, carbon dioxide, and preservative organic acids, naturally preserving the food for long-term cold storage.

Our family enjoys fermented ketchupfermented ginger carrotshomemade lacto-fermented mayonnaise, and quick & easy zucchini pickles. Here’s my list of the best foods to ferment, especially when just starting out.

Equipment Needed to Ferment Green Beans

Most people think fermentation takes a lot of equipment, but truth be told, it’s one of the easiest forms of food preservation.

All you need is a mason jar with a lid, green beans, water, and salt!

There are a few other tools that can help make fermentation easier (such as fermentation weights and lids) but there are definitely added benefits and not necessary. 

A table with bowls filled with ingredients for fermented green beans.

Ingredients Needed

This recipe is one that’s a family favorite, and we call them “Pizza Beans”. The reason for this is that the tomatoes, garlic, and oregano add a nice pizza-like flavor to the crunchy snack!

  • Green beans
  • Brine (salt + water)
  • Diced tomatoes
  • Garlic cloves
  • Dried oregano

How to Lacto-Ferment Green Beans

If you’re going to allow this ferment to sit at room temperature for more than just a couple of days, then you’re going to want to sterilize your jar for 12 minutes in boiling water.

A woman adding garlic to a jar of fermented green beans.

1. Gather all ingredients and supplies.

2. Add garlic and oregano to the bottom of a clean mason jar or fermenting crock.  

A woman getting a handful of green beans to a jar.

3. Pack your green beans into the jar until about 1/3 full.

Adding tomatoes to a jar of fermented green beans.

4. Add half of the diced tomatoes to the jar.

A woman adding a handful of green beans to a mason jar.

5. Pack in more green beans until the jar is about 2/3 to 3/4 full.

A woman adding diced tomatoes to a jar of fermented green beans.

6. Add remaining tomatoes then top the jar off with as many beans as you can until filled to the shoulder of the jar (remember to really pack them in tightly!)

A jar of brine being poured over a jar filled with green beans.

7. Sprinkle the sea salt into the jar then fill with water up to the first ring on the neck of the jar.

A mason jar of fermented green beans.

8. If using a fermenting weight, add it now so all food is completely submerged below the brine.

9. Using a two-part canning lid, place the lid onto the jar and gently screw down just until you feel resistance, then turn back a half turn.

10. Allow the beans to sit at room temperature for two weeks.

11. Tighten the lid down to fingertip tight, then move to cold storage. This could be a refrigerator, root cellar or cold storage (ideally, below 55 degrees)

More Fermentation Resources

A mason jar of fermented green beans.

Lacto-Fermented Green Beans (aka “Pizza Beans”)

Lacto-fermented green beans make a fantastic healthy snack. They're tangy, flavorful and crunchy and can be flavored up countless ways.
4.29 from 67 votes
Print Pin
Course: Snack
Cuisine: American
Prep Time: 10 minutes
Fermenting Time: 14 days
Total Time: 14 days 10 minutes
Servings: 8 servings
Calories: 23kcal
Author: Carolyn Thomas

Equipment

  • Mason Jar
  • Fermenting Weight

Ingredients

  • 1 tsp dried oregano or 1 tablespoon fresh oregano
  • 2 cloves garlic large cloves
  • 4 cups green beans rinsed and snapped
  • 2 small tomatoes diced
  • 2 tbsp sea salt
  • 3 cups distilled water

Instructions

  • Gather all ingredients and supplies.
  • Add garlic and oregano to the bottom of a clean mason jar or fermenting crock.
  • Pack your green beans into the jar until about 1/3 full.
  • Add half of the diced tomatoes to the jar.
  • Pack in more green beans until the jar is about 2/3 to 3/4 full.
  • Add remaining tomatoes then top the jar off with as many beans as you can until filled to the shoulder of the jar (remember to really pack them in tightly!).
  • Sprinkle the sea salt into the jar then fill with water up to the first ring on the neck of the jar.
  • If using a fermenting weight, add it now so all food is completely submerged below the brine.
  • Using a two-part canning lid, place the lid onto the jar and gently screw down just until you feel resistance, then turn backward a half turn.
  • Allow the beans to sit at room temperature for two weeks.
  • Tighten lid down to fingertip tight, then move to cold storage. This could be a refrigerator, root cellar or cold storage (ideally, below 55 degrees).

Notes

  • If storing fermented green beans for long-term storage (more than a couple of weeks), sterilize your jars for 12 minutes prior to filling with food.
  • Using a fermentation weight is a great way to keep all food below the surface of the brine.
  • You can use a fermenting lid so you don’t have to worry about “burping” your jar, or using a two-part canning lid, you can place the lid on and gently tighten the ring, then turn back half a turn so the jar can naturally burp as gasses build up.

Nutrition

Calories: 23kcal | Carbohydrates: 5g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1749mg | Potassium: 170mg | Fiber: 2g | Sugar: 2g | Vitamin A: 569IU | Vitamin C: 10mg | Calcium: 28mg | Iron: 1mg
Tried this recipe?We want to see! Tag @homesteadingfamily on Instagram.

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