Mason Jar Sprouts

It’s fall guys… the garden is out and I am already missing my garden’s fresh greens. Something about homegrown veg just tastes better than any store bought produce ever could. Cue the sprouts! Nothing helps to boost my grow-jo than making some sprouts. This is an uncomplicated, step by step guide to help you add some fresh and healthy greens to your diet using a simple vessel– the mason jar.

Different sprouts in a jar. Alfalfa, beet, bean, and Ancient Eastern Blend.

What is Sprouting?

Simply put, a sprout is a germinated seed. When you are sprouting, you are soaking your desired seed in water. Soaking the seed causes it to swell, allowing a series of chemical reactions to occur creating aerobic respiration; developing a delicious and nutritious sprout in a few days time.

Overhead view of beet sprouts on a metal lid.

Why Sprout?

There are many benefits to sprouting your own seeds. Firstly, homegrown sprouts taste better because they are FRESH! Sprouts are also nutritional powerhouses– nutrient dense, packed with fibre, phytonutrients, chlorophyll, protein (beans and legumes). Sprouted seeds are easily digested and have low fat, low sodium, and zero cholesterol. Depending on your seed selection, sprouts can easily be gluten-free. Sprouting your own seeds will also save you tons of money when compared to buying from the store. Two tablespoons of alfalfa seeds will fill a quart sized mason jar and easily provide you with fresh sprouts for up to a week.

Where to Buy Your Seeds

I purchased my sprouting seeds from Mumm’s Seeds. They offer a wide variety of organic sprouting seeds from a little farm in Saskatchewan, AB. I have also seed sprouting seeds at places like Canadian Tire, Amazon, and my local hardware store.

Some people have had luck sprouting lentils and other seeds straight from the grocery store but there are a few things to consider before doing this. Sprouting seeds have to go through certain tests to make sure that they are free of e.coli and salmonella. Seeds and lentils that you buy from the grocery store don’t have this guarantee– likely because the manufacturers assume that they will be boiled before consumption. They also may be irradiated to make sure that they don’t sprout on the shelf- so no matter your effort, they will not sprout at all.

overhead view of bean sprouting seeds.

Best Sprouting Seeds for Beginners

Alfalfa seeds are awesome if you are just starting out sprouting your own seeds. My favourite easy sprout mix is the Sandwich Booster from Mumm’s Seeds. It requires as little as 4 hours pre-soaking and takes around five days. This mix includes a variety of seeds including alfalfa, mustard, radish, and clover.

Equipment Needed

  • mason jar
  • elastic 
  • cheese cloth or fine mesh bag cut into 5×5 squares
  • sprouting seeds
Overhead view of sprouting seeds, a jar, tablespoon, ponytail, fine mesh.

Tips + Tricks

  • To avoid mould and to improve air circulation, make sure to rinse your sprouts twice a day.
  • To avoid fruit flies, place your sprouts in the fridge for a few hours or overnight. Placing a fan near your sprouts will also help to deter any fruit flies. Seeds will germinate best when kept at around 18°C or 65°F. I keep mine near my sink but out of direct sunlight for easy rinsing. It is important to keep your sprouts out of direct sunlight or exposed to any heat because they can easily dry out.

The Process

  1. Wash your jars thoroughly with soap and water to make sure that they are free from bacteria that could spoil your sprouts. 
  2. Choose the type of sprouts that you would like to use. I chose a Sandwich Booster blend, beets, a Crunchy Bean Mix, and an Ancient Eastern Blend. The Sandwich Booster blend from Mumm’s seeds is my personal favourite. It includes clover, alfalfa, radish, and mustard seed. It germinates and grows quickly and efficiently and has great flavor! If you like a little more texture and crunch, the Crunchy Bean Mix is the way to go.
  3. Once seeds are measured and placed into your jars, place your cheese cloth or fine mesh on top of your jar and secure it with an elastic. Tip: I like to double up my mesh when using small seeds like alfalfa.
  4. Follow the instructions specific to your sprouting seeds. Be sure to read about how much water to add to the jar and how to prepare your sprouts before you get started. Some sprouts require a full soak for 12 hours while others can be rinsed and started in as little as 4 hours.
  5. Invert your jar of sprouts in a bowl to allow proper drainage. Keep them out of direct heat and sunlight. They like to be about 18°C or 65° F. With absolutely no sun, they will be pale- place them in indirect light. Rinse, swirl, and drain twice a day until sprouts have reaches full maturity.
Four Sprouting seed jars with soaking seeds and cheese cloth on top.

How to Store Your Sprouts

Once sprouts are fully mature, store them in an airtight container with a layer of paper towel at the bottom and place in the fridge. They can be kept for up to a week. I like to start a new batch when I am about halfway done my fresh supply.

How to Use Your Sprouts

-Place a handful on top of your avocado toast

-Sprinkle a healthy amount of sprouts on top of your favourite salad

-Elevate your sandwich or burger with a nutrient and texture boost

-Use them in soups (especially if the sprouts are bean based)

-Add them on top of a breakfast scramble

-Stirred into a stir fry

-Blended into a smoothie (awesome way to sneak extra greens into your kids)


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  1. Ok I’m not a gardener but love the idea of growing my own food for my family this was a awesome way for me to learn the basics while providing a healthy home grown food for my kiddos!

  2. Love this…I always forget how easy this is to make and keep a batch always on hand. I will experiment with some of these new seeds.

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