Oat drink powder that mixes into cold water: Garu Teacher Unsweet

In short

Garu Teacher Oat Drink Unsweet is a sugar-free oat drink powder made from Canadian oats milled with the hull on, stirred into water or milk. Two scoops (30g) in 150-180ml of cold water dissolved quickly with no clumps left, and the powder tasted rich and nutty even in plain water. Because Garu Teacher Unsweet needs no overnight soaking like overnight oats, it works as a fast breakfast replacement.

Garusunsaeng Oat Drink Unsweet product photo

Good to know

Product
Garu Teacher Oat Drink Unsweet
Ingredients
99.6% oats (from Canada), 0.4% sea salt
Serving size
30g (2 scoops of the included spoon) / 119kcal
Sugar
0g
Dietary fiber
4.7g (19% of the daily value)
How to drink
2 scoops (30g) in 150-180ml of water
Shelf life
12 months from the date of manufacture
Storage
Keep sealed in a cool place out of direct sunlight
Suitable age
Ages 1 and up

Prices as written by the tester on Sep 24, 2026 · not updated automatically

Today I'm bringing you a review of 'Garu Teacher Oat Drink Unsweet' — perfect for busy mornings or snack cravings when you want something easy and healthy to mix and drink!

Garusunsaeng Oat Drink Unsweet product photo

This is a great pick if you've been looking for a nutty, clean drink to replace milk, or a healthy snack without sugar worries! I'm going to give you an honest review of drinking it mixed with water, plus all the ingredient info, neatly organized 😊

What comes in the Garu Teacher Oat Drink Unsweet pack, and what's in the powder

Contents of the delivered oat drink package

The package comes with these clean, simple contents!

Oat drink package made with Canadian oats

Garu Teacher Oat Drink is made from whole Canadian oats — a world-renowned oat-growing region — ground with the hull intact, so you get the full benefit of core nutrients like beta-glucan and abundant fiber 🌾

Oat drink ingredient list and nutrition facts panel

Looking at the ingredient list, it's 99.6% oats and just 0.4% sea salt — no sugar, emulsifiers, synthetic flavoring, or preservatives whatsoever! 🙅🏻‍♀️ Per serving (30g) it's 119kcal with 0g sugar and 4.7g fiber (19% of daily value), so even dieters watching their sugar intake can drink it worry-free 🙂

Product info showing 0g sugar label

How to mix it: 2 scoops of oat powder in one glass of water

I also took a photo of the info leaflet that came with the product 📄 It says all you need to do is add 2 scoops (30g) with the included spoon to a glass of water (150–180ml) 🥄

Included instruction leaflet on how to drink

The shelf life is a generous 12 months from the manufacture date, and you just need to keep it sealed in a cool spot away from direct sunlight. The ingredients are mild and healthy enough for anyone aged 1 and up, so it seems great as a snack for the whole family 👐

They're also running a review event offering discount coupons for reviews on Smart Store, Instagram, and Naver Blog, so if you've purchased it, definitely take part and grab the perk!

Oat powder, included spoon, and a glass of cold water ready to mix
Measuring oat powder level with the included spoon

Does Garu Teacher oat powder dissolve in cold water?

First I prepared a cup of cold water, then scooped up the powder! When measuring, just level off the spoon so the powder doesn't pile above the rim 🥣

I added 2 scoops of the measured powder to the prepared water! Back when I was dieting, I used to make overnight oats pretty often, but overnight oats need time to sit and soak, so on lazy days I'd always end up skipping it ^_ㅠ But with this one, you can get the full nutrition of oatmeal just by mixing it into water or milk and drinking it right away, so it's really great for a quick mix every morning 🥛

Now I started stirring hard with the spoon! Any clumps of powder that formed I pressed against the wall of the cup while stirring, and even in cold water it dissolved smoothly pretty quickly. I think it would mix even better shaken in a shaker bottle 👍🏻

A glass of oat drink dissolved smoothly in cold water

What does the Unsweet flavor taste like, and with a spoon of allulose?

After mixing it all and taking a sip, since it's unsweetened you barely taste any sugar, but the deep, nutty flavor characteristic of oatmeal comes through heavily! Usually powders like this taste really bland mixed with just water, but this one had amazing nutty flavor even with plain water 🥹 Made me wonder how much better it'd taste mixed with milk~

I thought it'd taste even better with a touch of sweetness, so I added a bit of allulose, and with that hint of sweetness it was much tastier for my palate 😋

Oat drink mixed with a spoon of allulose
Sugar-free oat drink enjoyed as a breakfast substitute

Is Garu Teacher Oat Drink Unsweet worth buying?

Garu Teacher Oat Drink Unsweet was a perfect healthy drink — honest ingredients, clean with no additives, and convenient with how well it dissolves even in cold water! If you're looking for a healthy breakfast substitute drink, I highly recommend giving Garu Teacher Oat Drink a try ⭐️

Where to buy

Garu Teacher · Garusunsaeng Oat Drink Unsweet (30g serving)가루선생 타먹는 오트 드링크 언스윗 (1회 분량 30g)Prices as written by the tester on Sep 24, 2026 · not updated automatically
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