Costco Kirkland Signature Organic Oat Beverage Review

Costco now carries their own Kirkland Signature Organic Oat Beverage!

Costco Kirkland Signature Organic Oat Beverage box sitting on a table
Costco Kirkland Signature Organic Oat Beverage

Kirkland Signature Oat Beverage has hit the shelves at Costco! The Costco Kirkland Signature Oat Milk which is what I’m reviewing today! I don’t usually drink cow’s milk and mostly gravitate towards almond milk but am excited to be trying this oat milk from Costco for a change!

Other non-dairy beverages from Costco I’ve reviewed are the Costco Almond Breeze Unsweetened Original Almond Milk, Costco Kirkland Signature Organic Almond Milk and the Costco milkadamia Macadamia Beverage.

Location in Store

You can find the oat milk near all the other non-dairy and alternate beverages. The oat milk doesn’t come refrigerated and the item number is 1272413.

Costco Kirkland Signature Organic Oat Beverage poured into a glass with the container beside the glass, on a table.
Smooth, creamy and sweet.


This is so delicious! It’s extremely creamy. It does taste like oats and does have a bit of a sunflower flavor. It’s sweeter than almond milk or cow’s milk. It kind of has a flavor of milk that’s slightly sweetened from sitting in a bowl of cereal. I really like it.

A glass of poured Costco Kirkland Signature Organic Oat Beverage.
I can easily enjoy a glass of this!

With almond milk I never want to drink a glass of it straight but I don’t mind the Kirkland Signature Oat Beverage on it’s own! It would go well with a slice of chocolate cake or a cookie but tastes amazing with cereal.

Costco Kirkland Signature Organic Oat Beverage product description from box.
Vegan, nut free and dairy-free.


You get six 946 milliliter containers of oat beverage in a box for $10.99 Canadian which is quite reasonable! Oat milk at my local grocery store is three to five dollars for one container.


The oat beverage has a best before date of about 10 months from the date I purchased it. Once opened you need to refrigerate the oat beverage and the container recommends shaking it well before serving it. Also it’s suggested to consume with seven to 10 days of opening it.

This is great for coffee, cereal or to enjoy on it’s own.

Costco Kirkland Signature Organic Oat Beverage nutrition facts label.
Nutrition facts.



One cup of Costco Kirkland Signature Oat Beverage is 130 calories, five grams of fat, 17 grams of carbohydrates, two grams of fibre, seven grams of sugar, three grams of protein and 100 mg of sodium. This has more calories, sugar, carbohydrates and fat than almond milk.

Costco Kirkland Signature Organic Oat Beverage ingredients label.


I don’t love that there’s sunflower oil in this but there could be worse things! All of the ingredients are organic. The oat beverage from Costco is also fortified meaning they add Vitamin D2, Zinc, Riboflavin, Vitamin A and Vitamin B 12.


Taste: 8/10

Cost: 8/10

Convenience: 10/10 (would love if it resealed)

Nutrition: 6/10


Give it a try!

If you’re someone who drinks a lot of dairy alternative beverages I would definitely recommend trying to the Costco Kirkland Signature Organic Oat Beverage. It’s really creamy, smooth, sweet and delicious.

Do you have a favorite non-dairy beverage you always buy?

Please note that this review was not paid for or sponsored by any third party. This product was purchased by Costcuisine for the purpose of producing this review. The opinions in this review are strictly those of Costcuisine. Costcuisine is not affiliated with Costco or any of its suppliers. In the event that Costcuisine receives compensation for a post from the manufacturer of a product or some other third party, the arrangement will be clearly disclosed (including where the manufacturer of a product provides Costcuisine with a free sample of the product).

Join the Costcuisine email list - never miss a review!

Please wait...

Thank you for signing up!

Please note that Costcuisine is not associated with Costco.

17 thoughts on “Costco Kirkland Signature Organic Oat Beverage Review”

  1. Being a diabetic and allergic to tree nuts, I love this except the carbs/ calories. Wish they could reduce the reason why it says 7grams added sugars….when is it added and how? Would buy more of this, but can’t because of the sugar.

  2. does this oat beverage have monsantos round up in it (Glyphosate) it’s not only used as a weed killer (herbicide) it’s sprayed on all oats (other than organic) to hasten drying time (saves farmers money). much higher than government regulation are being found in our grains (oats). Monsanto has and is currently loosing court battles and law suits over the toxicity of Glyphosate.
    P.S. These grains are also being fed to our farm animals and are being found in dairy milk in excess of regulations. Do I Have To By Organic.

  3. It’s good, but I wish it wasn’t sweetened. I’m not going to buy it anymore. WHY do companies feel the need to add sugar to everything? If people want it sweeter, they can add sugar. But if people don’t want it sweetened, its not possible to remove sugar. I think I’m just going to make my own from now on. Food Companies have our entire society so addicted to sugar it’s insane. They know it’s addictive, and that’s why they keep adding more and more to everything.

  4. Great product. I agree with Dave Peterson about the useless container. I pour the contents into my own pitcher upon opening container.

  5. The oat milk itself is good, but the container is a disaster. The plastic spigot breaks off almost immediately, then there’s no easy way to seal the container or to pour without making a mess.


Leave a Comment