Mung bean sprouts 101 | How to grow mung bean sprouts

Mung bean sprouts 101 | How to grow mung bean sprouts

What are mung bean sprouts?

Mung bean sprouts are mung beans that have started to grow. Mung beans belong to the legume family, meaning they grow inside a pod. Mung beans are in fact seeds, so when the conditions are right, they naturally begin to germinate.

Have you ever been to a Southeast Asian restaurant and wondered how they get to grow their sprouts so long? I love the crunch and texture mung bean sprouts add to Southeast Asian dishes.

With some love and care, you can grow long and strong bean sprouts at home, to use in your favourite Asian dishes like Pad Thai, fried rice, noodle dishes, soups etc. etc. Read on to learn how!

how to grow mung bean sprouts

Why sprout legumes?

Disclaimer – I am not a nutrition expert, so please do not consider this as expert advice.

  • Sprouting makes legumes easily digestible.
  • Reduces anti nutrients.
  • Increases the nutrition value.
  • Makes it easier for the body to absorb nutrients.
  • Transforms the taste and texture.

Two types of mung bean sprouts

Mung bean sprouts are extensively used in South Asian and South East Asian cuisines.

South Asians sprout mung beans(green moong) for a shorter period, generally not longer than 24 hours. At this stage, the sprouts still look like mung beans with a small white sprout, generally not longer than 1/2 inch.

south-asian-bean-sprouts
South Asian bean sprouts

Meanwhile the Southeast Asians grow it for a longer period of 3-7 days, letting the sprouts grow as long as 2-3 inches. The sprouts are transformed and they no longer look like a bean!

homemade mung bean sprouts
Southeast Asian mung bean sprouts

Both kinds of sprouts have different tastes and textures.

How easy is it to grow mung bean sprouts at home?

Sprouts are easy to grow in summers or in temperatures above 70F/21C. When temperatures dip, you may need to find a warm spot for the sprouts to grow.

Shorter bean sprouts

  • Easy to grow.
  • Don’t need any baby sitting.
  • Can be grown in a bowl, a jar or tied in a cloth.
  • Can be grown right on the counter-top.
  • Ready within 24 hours(after soak time)

Make this easy South-Indian salad with your sprouts.

Longer bean sprouts

  • Rinsing the sprouts twice(morning and evening) will take five minutes of your time everyday.
  • Needs a colander or any other apparatus with drainage holes. I use my steamer (affiliate link) which doubles perfectly as a sprouting equipment!
  • Needs a dark spot, away from light for ideal growth.
  • Depending on the temperature, longer sprouts take 3-5 days to grow.

Use these longer sprouts in Southeast Asian recipes like this Lemongrass fried rice and Thai basil fried rice.

steamer to grow mung bean sprouts
My steamer also works as my sprouting equipment.

Why grow mung bean sprouts at home?

  • Mung bean sprouts available at stores are not as fresh as homemade.
  • You know exactly what has gone into homemade sprouts.
  • Store bought sprouts may have added preservatives.
  • Hygiene is very important when it comes to growing and storage of bean sprouts.
sprouting mung bean

Safe sprouting

Warm and humid conditions are ideal to grow sprouts which also happens to be an ideal growing condition for bad bacteria. Use good quality mung beans and clean equipment and clean water to grow sprouts. Remember to discard the water that drains down from the rinsing of sprouts.

While it is generally safe when sprouted at home, please use your judgement when using it raw. When in doubt, use sprouts blanched instead of raw. Pregnant women, younger kids, seniors and people with weakened immune system should eat sprouts blanched/cooked instead of raw. Read an article from the FDA here.

Personally, I use the smaller sprouts raw in salads but I blanch or cook the longer sprouts that have been growing for 3-5 days, before eating.

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How to grow mung bean sprouts. Steps & video

mung bean sprouts
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5 from 2 votes

How to grow mung bean sprouts

Everything you need to know about growing your own mung bean sprouts.
Yield
1/4 cup dry beans – 2 cups of short sprouts
1/4 cup dry beans – 6 cups long bean sprouts
Shorter sprouts total time1 day 8 hours
Total Time5 days
Course: Main Course, Salad, Side Dish
Cuisine: asian, Havyaka, Indian
Diet: Gluten Free, Vegan, Vegetarian
Keyword: mung bean, sprouts
Yield: 6 cups
Author: Shwetha

Equipment

  • colander or something similar with holes for drainage.
  • A bowl to collect water dripping out of the colander.

Materials

  • ¼ cup dry mung beans moong/green gram/hesaru

Instructions

  • Wash and soak the beans in water for 8 hours or until plump. I soak the beans overnight.
  • Drain the water and give the beans a rinse with fresh water.

Growing shorter sprouts for South Asian recipes

  • Put the soaked, rinsed and drained mung beans back in the same bowl.
  • Cover and place in a warm spot for 18-24 hours.
    Check notes to grow sprouts in winter.
  • Rinse and use in recipes like this sprouts salad. Refrigerate if not using immediately.
    south-asian-bean-sprouts

Growing longer sprouts for Southeast Asian recipes

  • Add soaked rinsed & drained mung beans into a colander lined with paper towel/muslin cloth.
  • Place the colander in a larger bowl, so that water can drip out. It will also help in keeping the light out, so choose an opaque bowl.
    Note: I use this two tier steamer as my sprouting apparatus.
    steamer to grow mung bean sprouts
  • Place a plate on top of the beans. This makes the shoots grow thick and strong.
  • Cover with a dark coloured towel so that light cannot enter into the colander.
  • Now, place the entire setup in a warm, dark spot where light cannot enter.
  • Twice every day(morning & evening), take the colander out, remove the towel and the plate and give the sprouts a good rinse under running water as it requires moisture to grow healthy.
  • Every time you rinse, remember to discard the water that has collected in the drainage bowl.
  • Place the colander back in the bowl, place the heavy plate on top and cover with the dark colored towel.
  • Repeat steps 6-8 twice everyday for 3-5 days or until the bean sprouts have grown about 2-3 inches long.
    Note : Growth depends on room temperature. Please check notes below,
  • Refrigerate in an air tight bag and use within 3 days.
    Recipe ideas – lemongrass fried rice, Thai basil fried rice
    homemade mung bean sprouts

Video

Notes

  • Please check the video for a visual guide. 
  • It is easier to grow sprouts in warmer temperatures of above 70F/21C.
  • In winter, place the beans in a warm spot to encourage sprouting. I turn my oven on for two minutes, turn it off and place the beans in. 
  • To grow the longer kind of sprouts,
    • use a colander or anything else with drainage holes. I use my two tier steamer
    • Remember to rinse the sprouts twice everyday for ideal growth.
    • Remember to discard the water collecting in the drainage bowl to avoid the growth of harmful micro organisms.  
    • Remember to place the colander in a dark spot .
  • Use caution when using raw sprouts, personally I use the shorter sprouts raw, but I always blanch the longer sprouts that have been growing for 3-7 days
At an indoor temperature of about 80F/27C
  • Short sprouts grow in 24 hours(after soaking) 
  • Longer sprouts take 3 whole days(after soaking) 3 x 24 = 72 hours
Here is my timeline. Note that growth can be faster or slower depending on temperature. 
Tue evening – soak beans
Wed morning – drain and let them begin sprouting.
Thursday morning – short sprouts are ready.
Saturday morning – longer sprouts are ready. That calls for Pad Thai or fried rice for the weekend! 🙂 


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