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Home Condiments and Sauces

Korean Green Plum Extract or Syrup (매실청 Maesil Cheong)

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Posted:4/04/2022104 Comments
Recipe Print
Korean Green Plum Syrup (Maesil Chung 매실청)
Korean Green Plum Syrup (Maesil Chung 매실청)

Korean Plum Extract – 매실 엑기스(Maesil  Aekgiss) or 매실청 (Maseil Chung) or Green Plum Syrup – has only appeared in Korean cooking in recent years while Korean green plums (매실 Maesil, also: Chinese plum or Japanese ume) have been around for a long time. Records of its medicinal purposes go far back as 200 AD. But If you watch any Korean cooking shows or look up recipes on the internet these days, the syrup is used just about everywhere. In fact, it’s used a little too much in my opinion but that’s just me.. 🙂

The two terms, Aekgiss (엑기스)  and Cheong (청) are used interchangeably to describe green plum extract or syrup. The word  “Aekiss” comes from Japanese and it was their take on the word “extract”.  Don’t ask me how you get “aekiss” from “extract”.. 🙂 On a side note, it IS amazing how languages change in different cultures..I’m constantly reminded not to pronounce English words correctly in Korea because people never understand what I say. For example, if I say “Food” almost no one will understand whereas if I say “Pood”.. then everyone knows it!

The word Cheong actually means a type of syrup that’s made by either physically or chemically changing certain grains without any added sugar.  For example, Brown Rice Syrup (called 조청 Cho Cheong) is made from culturing cooked rice with enzymes with no additional sugar.  So if you think about it, neither of these terms are fully accurate..

While I was living in the US, I resisted using this Korean plum extract in my recipes. It’s not something I grew up eating and therefore I did not feel it was authentic.  Also, the Maesil Cheong is not a very readily available ingredient for many people outside of Korea, so I hesitated using them in my Kimchimari recipes. BTW, if you can’t get any plum syrup, no worries, just use plain ol’ sugar or rice syrup instead.

Now that I’m living in Korea, I’m finding that I just can not ignore Maesil Cheong anymore. It is such an integral part of Korean cooking that both my mother and mother-in-law (who is usually very traditional) now make maesil chung every year! In addition to being a great fragrant sweetener in cooking, Maesil also has many health benefits. Probably why it’s become so popular in Korea because Koreans just LOVE anything that is known to be healthy.

Japanese Green Plum or Maesil Tree
Japanese Green Plum or Maesil Tree
Japanese Green Apricot Plums or Maesil
Japanese Green Apricot Plums or Maesil

This May, I found these wonderful plum trees in our farm and after having tried it for a year, I just could not pass up the chance to make the maesil cheong green plum extract syrup myself!

How to use Korean Plum Extract or Maesil Cheong

Before we talk about how to make Korean Plum extract (Maesil Cheong), I want to share how I use it in my own home.

  • Make hot or cold maesil drink – from my personal experience. drinking plum syrup + water definitely helps with indigestion especially after a large meal so it’s definitely a great dessert drink. You can serve it cold or hot, both taste and feels great. One thing though, if you have an acidic stomach, you might want to be a bit careful.
  • I use Maesil Cheong in addition to sugar in many dishes – because Korean green plum extract is sour and sweet, I don’t substitute sugar fully but I substitute a little sugar with maesil or just add a splash in addition. It usually enhances the flavor of any dish when you add just a splash. Here are some dishes I always add to (I just don’t usually have it listed in many of my recipes because I didn’t want to make everyone to buy it or use it).
    • Bulgogi or Kalbi marinade
    • Kimchi – even though I don’t say it in each recipe, I often add a splash in all my kimchi when I make it. It’s totally fine without it but it does add that little extra something when you do.
    • Fish Jorims – wow somehow I don’t have a recipe up for this but if you do make any, you can add a swirl
    • Salads – like Lettuce Salad or Cucumber Salad
    • Chogochujang Sauce

Ingredients

** 2 lbs of plums produce about 1 quart of syrup

  • 2 lbs Green Plums
  • 2 lbs sugar (white or organic unbleached)~ 2.4 lbs  sugar
  • 1 glass jar or breathable earthen ware (항아리 Haangari) large enough to hold both sugar and plum

Directions

  1.  Wash the plums and drain. Let the plums completely dry by leaving it for few hours in a colander or better yet, spread them out onto a baking pan or tray lined with paper towel.

    plums_washed and draining
    Maesil or Japanese green plums washed and draining
  2. While the plums are drying, remove any stems including the little stub near the stem. Removing the stub is not a must but if you don’t, stubs will later float around in the syrup and you will have to strain it to get rid of it.  Leaving the stubs intact also increases the chance of mold developing in the syrup.

    Cleaned maesil plums for syrup
    Cleaned plums maesil plums for maesil chung syrup
  3. Discard any plums that are rotten because these can spoil the syrup.
  4. Sanitize the glass jar by rinsing it with boiling water or alcohol.
  5. Layer sugar and plums alternately in the jar. This means you need to divide the sugar and the plums equally so that you don’t run out of sugar at the end. If you layer the sugar so that it just about covers the layer of plums, it should work out OK.
    Japanese green plums for maesil chung syrup
    Japanese green plums for maesil chung syrup
    Green apricot plums or Maesil in sugar for Maesil Chung
    Green apricot plums or Maesil in sugar for Maesil Chung
    Green plums or maesil with sugar in jar for maesil chung
    Green plums or maesil with sugar in jar for maesil chung

    And that’s it! Cover the jar and leave it in a cool place for 90 days and the syrup should be ready.

    Maesil Chung or Green Plum Syrup after Day 1
    Maesil Chung or Green Plum Syrup after Day 1

BUT WAIT!!! A bit more work is still needed..many (including me) have failed because they did not stir the syrup afterwards. See below – notice how the sugar has accumulated at the bottom of the jar. You need to stir the green plum syrup every 2 days or so (prob. for about 7-10 days) until the sugar is fully dissolved in the plum juice. You should still stir the plum syrup every now and then for the remaining 80 days.  Stir if you see the top plums take on a different color or if you see white stuff appearing on top.

Maesil Chung syrup or Green Plum Syrup on Day 3
Maesil Chung syrup or Green Plum Syrup on Day 3

After 90 days, remove the plums with the seeds – which now will have no flesh left and look all shriveled up. Store in jars at room temperature and it will keep for at least a year or more.

Maesil Syrup Substitute

If you can’t find Korean plum extract maesil syrup, just mix 1 Tbsp water + 1 tsp apple cider vinegar + 1/2 tsp sugar to substitute 4 tsp Maesil Syrup!

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4.84 from 6 votes

Maesil Cheong (Green Plum Syrup)

Korean Maesil Chung is a fermented syrup made from Green Apricot Plums and sugar. It adds great flavor to marinades, salads and just about any Korean dish that needs sweetness. Fresh green plums (aka Japanese green plums) are available only for a short time in the spring so don't miss it!
Prep: 15 minutes minutes
Total Time: 15 minutes minutes

Ingredients

  • 2 lbs Green Plums
  • 2 lbs sugar (white or organic unbleached)~ 2.4 lbs sugar
  • 1 glass jar or breathable earthen ware (항아리 Haangari) large enough to hold both sugar and plums
US Customary - Metric
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Instructions

  • Wash plums and drain. Let plums completely dry.
  • Remove any stems including the little stub near the stem. Removing the stub is not a must but if you don’t, stubs will later float around in the syrup and you will have to strain it to get rid of it.
  • Discard any plums that are rotten because these can spoil the syrup.
  • Sanitize the glass jar by rinsing it with boiling water or alcohol.
  • Layer sugar and plums alternately in the jar. This means you need to divide the sugar and the plums equally so that you don’t run out of sugar at the end. If you layer the sugar so that it just about covers the layer of plums, it should work out OK.
  • Cover the jar and leave it in a cool place for 90 days.
  • After 90 days, remove the plums with the seeds and store the syrup for use. Can be stored at room temperature for many months, even a year or more.

Tips & Notes:

  • Don’t hold back on the SUGAR! The key to making good plum syrup is the ratio of plum to sugar. The basic is 1:1 but depending on how big and juicy the plums are, you may want to increase the ratio to 1:2. More sugar increases the success rate since more sugar means less chance for mold to develop or turn sour instead of sweet.
  • What sugar to use? Brown vs White vs Organic? This is quite a dilemma…Using white sugar will intensify the plum fragrance in the syrup but we all know it’s not the best thing for your health. I used organic unbleached sugar here. Brown sugar contains molasses like substance in addition to sugar which can diminish the flavor and fragrance of the green plums.
  • You need to stir the syrup every 2 days or so (prob. for about 7-10 days) until the sugar is fully dissolved in the plum juice. You should still stir the plum syrup every now and then for the remaining 80 days. Stir if you see the top plums take on a different color or if you see white stuff appearing on top.
Author: JinJoo Lee
Course:seasoning
Cuisine:Korean
Keyword:drink, fermented syrup, sugar substitute, sweetener
KoreanCategory:Yangnyeom (양념)
Did You Make This?I love seeing what you’ve made! Tag me on Instagram at @Kimchimari or #kimchimari and don’t forget to leave a comment & rating below!

In addition, consider the following:

  • Don’t hold back on the SUGAR!!
    • The key to making good Korean plum extract syrup is the ratio of plum to sugar. The basic  is 1:1 but depending on how big and juicy the plums are, you may want to increase the ratio to 1:2. More sugar increases the success rate since more sugar means less chance for mold to develop or turn sour instead of sweet. A friend of mine used exact 1:1 ratio and failed on her first try. So I decided to increase the sugar amount to not quite 1:2 but something like 1:1.5..and SUCCESS!!
  • · What sugar to use? Brown vs White vs Organic?
    • This is quite a dilemma…Using white sugar will intensify the plum fragrance in the syrup but we all know it’s not the best thing for your health. I used organic unbleached sugar here.  Brown sugar contains molasses like substance in addition to sugar which can diminish the flavor and fragrance of the green plums.

History of Korean plums: The oldest record of these little plums is in Chinese medicine. Chinese smoked these on top of a fire and used it to relieve pain and also take care of intestinal problems.  Japanese used Ume Boshi to prevent rice from going bad in the summer.

In the last few years, studies have shown the following:

  • The large amount of citric acid in the plums help the body get rid of lactic acid therefore helping the body recover faster
  • The acidic plums help with secretion of saliva and digestive enzymes aiding with digestion
  • The plum syrup kills off harmful bacteria to help with diarrhea and promote normal bowel function
plum syrup after 30 days
Korean Maesil Chung or Green Plum Extract or Green Plum syrup after 30 days

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104 Comments
  1. K says

    Posted on 29 September 2024 at 6:18 pm

    Very good! Does it need to be refrigerated once open?

    Reply
    • JinJoo says

      Posted on 29 September 2024 at 8:51 pm

      Awesome! No, you don’t need to refrigerate – it can be stored at room temperature. Enjoy!

      Reply
  2. SashieGirl says

    Posted on 19 September 2024 at 11:07 am

    Do you ever make a cold drink out of this plum extract? I have been searching for a recipe or suggestions on how to use it. We are trying to replace unhealthy drinks like pop with something that is good for you.
    When I was young I used my slow cooker one year to make my own Lekvar, a plum butter. After it cooked overnight I hurried to see how well my experiment had worked. It had actually eaten the glaze off the crock pot. I had to throw it all away, including the pot. Thanks for sharing your recipes with us.

    Reply
    • JinJoo says

      Posted on 19 September 2024 at 1:48 pm

      Yes, we make a cold drink with the plum extract all the time! You just add a couple teaspoons or more to a cup of ice cold water. You can also make a hot tea with it and they are all delicious! I also use it in some cocktails instead of a syrup – if you are into that. I have a Soju Mojito Cocktail recipe – https://kimchimari.com/soju-mojito-cocktail/ if you want to try it. Good luck!

      Reply
  3. Susan says

    Posted on 24 May 2024 at 5:25 am

    Sounds yummy. I’d like to try, but the plums (ume) I have have ripened and turned yellow. Is it too late to use them for this recipe?

    Reply
    • JinJoo says

      Posted on 27 May 2024 at 10:37 am

      Hi Susan, sorry for the late reply. Yes, you can use yellow ones – some do that on purpose so it should still come out yummy!

      Reply
  4. RACHEL JACOBS says

    Posted on 18 September 2023 at 12:57 pm

    Can the syrup sit longer than 90 days? We made some in May of this year and forgot about it. Its been over 110 as of now. Would it still be safe to use?

    Reply
    • JinJoo says

      Posted on 19 September 2023 at 8:34 pm

      It should be fine as long as you don’t see any mold on top. Enjoy!

      Reply
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