Grain powder breakfast shake with water only: Garu Seonsaeng Heukseon

📌 Product name: Garuseonsaeng Seoritae Seoritae Premium Black Grain Drink (Heukseon)

📌 Size: 500g

📌 Food type: Other processed agricultural product

📌 Main ingredients: black soybean, black rice, yak-kong bean, black sesame, brewer's yeast, almond, green tea

📌 Serving size: 45g

📌 Protein: 10.4g per serving

📌 Storage: store sealed in a cool place away from direct sunlight

📌 Sugar: 2.3g per serving

I've been on the lookout for a grain drink I could recommend for mornings when I'm too lazy to prepare anything but don't want to head out on an empty stomach either.

This time I tried... Garuseonsaeng Seoritae Seoritae's Premium Black Grain Drink, Heukseon (Garuseonsaeng Seoritae Seoritae, "black line").

You only need water to mix it, which made it especially simple for busy mornings — I actually put the powder in a shaker, filled it with water from the water purifier, and shook it up.

What grains are in Garu Seonsaeng Heukseon?

Heukseon is a 500g grain drink built mainly around black grains. Looking at the ingredients, domestic black soybean makes up 41%, black rice 29.7%, and yak-kong bean 20%, along with black sesame, brewer's yeast, green tea, and almond.

The black zip-lock packaging matches the name Heukseon ('black line') well from first glance.

What I liked in particular was that ingredients like black soybean and yak-kong bean — the kind of thing you'd normally have to go out of your way to prepare separately — could be eaten in powder form all at once.

Since the sugar content is only 2.3g per serving from the ingredients themselves, with no added sugar or synthetic additives, the composition suited my taste — I prefer the savory flavor of grains themselves over an overly sweet grain drink.

How easy is Heukseon to mix in a shaker?

Per the product instructions, Heukseon is mixed by combining 3 scoops (45g) of the included spoon with 180ml of water. I put the powder in a shaker first, then added water and shook it.

The powder itself is a light gray with dark black flecks scattered through it.

There's no need to pull out a blender — just shake it up, which keeps the whole prep step short.

Shaking it in the shaker turns the powder into a fairly smooth drink. I had mine with water, which came out clean and light — mixed with milk, soy milk, or almond milk it would probably be richer and more savory. You could also adjust the amount of water depending on your taste.

Taste and texture of Heukseon as a breakfast replacement

Poured into a cup, Heukseon came out a grayish-brown similar to a drink made from ground black beans. It wasn't a strongly sweet type — the savory, mild flavor came through first.

So even someone who isn't a fan of sweet drinks could probably drink this comfortably.

It's not a drink where the particles fully disappear — a bit of that characteristic grain-drink texture remains from the ground grains. Personally, I actually liked this, since it made it feel more like I was eating a grain meal than just drinking a beverage.

I also noticed that one serving has 10.4g of protein. That seems useful on a day when there's no time to properly sit down for breakfast, or when you want something simple after a workout.

For someone like me who's rushed while getting ready for work, being able to finish the whole thing with just one shaker is the most convenient part. Powder in, water in, shake — done. Cleanup isn't complicated either, so it's genuinely easy to reach for!!

Does this black-food grain powder work with water alone?

I'd assumed a grain drink might taste flat without milk or soy milk, but Garuseonsaeng Seoritae Seoritae's Heukseon kept the savory flavor of grains like black soybean and black rice even when mixed with plain water.

If you want it richer, use a bit less water; if you want it lighter, add more — easy to adjust to your own taste.

The large 500g zip-lock bag was also convenient, since you can reseal the opening after use for storage.

Frequently asked questions

Can Garu Seonsaeng Heukseon be mixed with water only?

Yes. I actually drank it mixed with water, and it came out mild and savory. If you want a richer flavor, you can use milk, soy milk, or a plant-based milk instead.

Is Heukseon very sweet?

When I drank it, the mild, savory grain flavor was the main note rather than strong sweetness. Per the label, sugar per serving is 2.3g.

How much powder is one serving?

Per the product instructions, one serving is 45g — about 3 scoops with the included spoon — mixed into 180ml of water.

When is Heukseon most convenient to drink?

It works well for mornings when preparing a proper meal isn't possible, as a light snack, or as something to have after a workout.

What I liked most was not having to go through a complicated prep process.

Instead of gathering several black-food ingredients separately, you just scoop out the powder in one go and mix it with water. It's also not overly sweet, so it was easy to reach for in the morning without any hesitation. Worth a look especially if you're searching for a breakfast substitute or a mild grain drink that also has decent protein content.