Unsweetened oat powder drink, 2 scoops in 180ml water: Garu Teacher

In short

Garu Teacher Oat Drink Unsweet (Garu Teacher 타먹는 오트드링크 언스윗) is a no-sugar oat powder drink that is ready once you add water and shake. Two scoops of the included spoon (30g) with 180ml of water in a tumbler made a quick drink before and after the gym, and a stand-in for breakfast. Garu Teacher Oat Drink Unsweet is not sweet, tastes nutty and comes out slightly thick, so it suits anyone who often skips breakfast.

Garusunsaeng Oat Drink Unsweet brought to the gym

Good to know

Product
Garu Teacher Oat Drink Unsweet
Recommended serving
2 scoops of the included spoon (30g) + 180ml water
Ingredients
Canadian oats, sea salt (no sugar, emulsifiers, synthetic flavourings or preservatives, per the brand)
What's included
Dedicated measuring spoon, stored inside the package
Storage
Keeps at room temperature

Prices as written by the tester on Sep 25, 2026 · not updated automatically

I've been looking for something simple to eat before and after working out at the gym lately. That's how I found Garu Teacher Oat Drink, and I brought it straight to the gym to try mixing it up myself!

Garusunsaeng Oat Drink Unsweet brought to the gym

Just add water: 2 scoops (30g) of Garu Teacher oat powder to 180ml

With Garu Teacher Oat Drink, you put 2 scoops (30g) using the included spoon into a tumbler, add 180ml of water, and shake. Done. The powder dissolves quickly so it's easy to drink. No need to prep milk or anything else — just water — which made it convenient to bring along to the gym.

Garu Teacher Oat Drink comes with its own spoon included. You can even store the spoon inside the package itself and just pull it out when you need it, so there's no need to measure separately, which was handy too.

Oat drink powder with the included special spoon

A quick breakfast substitute on days you skip a meal

I'm not really the type to eat breakfast normally, but heading to work without eating anything leaves me feeling kind of empty. I keep telling myself I should eat breakfast, but preparing rice or bread first thing in the morning still isn't easy, so I was looking for something simpler.

So lately I've been having a glass of oat drink in the mornings. It was more filling than I expected, definitely more satisfying than skipping breakfast entirely, and easy to grab on busy days.

A glass of oat drink had as a breakfast substitute

Does Garu Teacher Oat Drink Unsweet taste watery?

At first I wondered if an unsweetened product mixed with just water and powder would taste a bit bland.

Oat drink shaken with water in a tumbler

But drinking it, it was nuttier and a bit thicker than I expected, so it was fine. And since it's unsweetened with almost no sweetness, it actually felt clean and light to me, since I'm not a fan of overly sweet drinks.

Ingredients: Canadian oats and sea salt only

Ingredient label showing only oats and sea salt

I checked the ingredients too. Garu Teacher Oat Drink Unsweet reportedly contains no sugar, emulsifiers, synthetic flavoring, or preservatives — just oats and sea salt. If you're someone who pays close attention to ingredients when choosing products, this is worth checking out. It uses Canadian oats, and the whole oat is included so you get the beta-glucan and dietary fiber.

Drinking Garu Teacher Oat Drink Unsweet before and after workouts

Oat drink tumbler prepared before a workout

I tried it before working out and it was more filling than expected, which felt reassuring. Eating something too heavy before exercise feels like a lot, but working out on an empty stomach isn't great either, so this felt like a good middle ground. It also seems good for a light drink after working out. And the biggest plus was how easy it was to bring to the gym — just powder and water in a tumbler.

Also works in oatmeal or overnight oats

Garusunsaeng Oat Drink used like oatmeal

I also liked that it's not limited to just drinking — you can use it like oatmeal or overnight oats. On mornings when I'm short on time, this seems handy since there's no need to prep oats the night before. It seems useful for anyone like me who tends to skip breakfast or wants a simple meal substitute around workouts.

Room-temperature storage, no fridge needed

Being powder form, storage was easy too. Unlike liquid drinks that need fridge space, this can be kept at room temperature, and the shelf life is generous enough that you can just leave it at home and grab it whenever you need it.

Garu Teacher Oat Drink Unsweet: the verdict

Garusunsaeng Oat Drink Unsweet product package

Room-temperature storage, dissolves well even in cold water, not sweet with a nutty flavor that feels light, and easy to use as a quick meal substitute. If you're like me and don't always manage to eat breakfast, or you're looking for something simple before or after workouts, this seems worth trying. I'm planning to keep eating it in different ways going forward!

Oat Drink Unsweet stored at room temperature

Where to buy

Garu Teacher · Garusunsaeng Oat Drink Unsweet가루선생 타먹는 오트드링크 언스윗Prices as written by the tester on Sep 25, 2026 · not updated automatically
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