How To Make Oat Milk

4.88 from 90 votes
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With just a couple of pantry-friendly ingredients, you can make your own delicious homemade oat milk with creamy, rich results every time.

pouring oat milk into a bottle

Making oat milk isn’t as daunting as it might sound it’s surprisingly easy! Being one of the most popular dairy-free milk varieties, my DIY oat milk gets a little sweetness from maple syrup and vanilla extract and makes a perfect substitution for dairy milk in baking, for breakfast, or even just in your cup of coffee.

I’ve spent a long time perfecting my oat milk recipe so it doesn’t turn out slimy, has a deliciously creamy taste, and is quick and easy to make.

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Oat Milk Ingredients

  • Rolled Oats: I prefer to use organic oats, but you can use any you have to hand, including steel-cut oats and certified gluten-free oats.
  • Cold Water: It should be ice cold.
  • Salt: Just a pinch of salt will bring out the sweetness in the milk.
  • Maple Syrup (Optional): I like to add this as a sweetener, though you can substitute it with honey (either ordinary or vegan) or agave nectar.
  • Vanilla Extract (Optional): I also use this for flavor, though you can adjust the amounts based on your taste.
ingredients for oat milk

Flavored oat milk

You can flavor your oat milk – just add your desired flavoring either when blending or when ready to drink. These are some of my favorite options:

  • Vanilla
  • Maple Syrup – or your favorite sweetener. Medjool dates can also work great here if you prefer.
  • Cocoa – cocoa powder will make a delicious chocolate oat milk – great for kids!
  • Strawberry or your favorite berries.
  • Coffee.

How to make oat milk

Add your rolled oats, water, salt, vanilla extract, and maple syrup (if using) to a high-speed blender and blend for 10 seconds (15-20 seconds if you’re not using a high-speed blender).

Once the oats have been fully blended, pour the mixture into a nut milk bag or a fine mesh strainer lined with a few layers of cheesecloth. I recommend having the bag in a bowl already before you pour the oat mix in.

Using your hands, strain the milk through. You should have a thin liquid with no lumps or extra mix in it and the pulp still in the bag. For super-smooth milk, strain the oat milk twice.

Steps for making oat milk

Top tips to avoid slimy oat milk

If you want to make your own oat milk – you don’t want a slimy result! These are my top tips for getting perfect oat milk every time:

  • Use Dry Oats: Your oats should be completely dry when you add them to the blender. If they’re wet, they won’t soak up as much of the liquid and will give the milk an unpleasant texture.
  • Don’t Over Blend: High-speed blenders work quickly, so you don’t need more than 10 seconds to get the right texture. Over-blending causes heat and friction, which changes the overall composition of the oat milk – making it slimy.
  • Don’t Over-Squeeze: The trick when straining is to handle the oat milk as little as possible. Too much squeezing causes more of the starch compounds from the oats to end up in your milk, which results in a slimy thick texture.
  • Double-Straining: Straining the oat milk mix twice in the bag will remove any extra pulp and starch that could make the milk slimy.
Oat Milk with timer for ten seconds

How to use oat milk

What to do with the leftover oat pulp

The leftover pulp can also be used in a variety of ways – and it’s easy to make this recipe completely no waste. Use the pulp for:

  • Breakfast dishes, especially overnight oats, muesli, oatmeal, and chia seed pudding.
  • Use in baking for extra fiber – it works great for cookies, brownies, and muffins.
  • Add to smoothies for fiber and protein.
  • Use around the house – you can use it to make face masks, body masks, and compost.
Oat leftover pulp in a nut milk bag

Can you heat oat milk?

Yes – but it’s best to do it slowly. Heat it gently over low to medium heat and stir it until it’s reached your desired temperature. Just be careful to not overheat, as it can thicken and get a strange taste if it’s heated too fast.

How long does homemade oat milk last

Once it is ready, transfer it into pre-sterilized containers or glass jars. Stored in the refrigerator, the homemade milk should be kept for up to 4-5 days. If you decide to use extra flavorings in your oat milk, this can affect the shelf life, so keep an eye on it after a few days.

More homemade plant-based milk recipes

If you try this oat milk recipe, let me know how it goes in the comments below. I’d appreciate a recipe card rating and would love to see your recipe recreations – tag me on Instagram @Alphafoodie!

How To Make Oat Milk

4.88 from 90 votes
By: Samira
With just a couple of pantry-friendly ingredients, you can make your own delicious homemade oat milk with creamy, rich results every time.
Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 4

Ingredients 
 

  • 3/4 cup rolled oats use organic and/or gluten-free if needed
  • 4 cups water ice cold
  • 1/8 tsp salt
  • 1 Tbsp maple syrup optional, or sweetener of choice
  • 1/4 tsp vanilla extract optional

Instructions 

  • Add all the ingredients into a high-speed blender and blend for 10 seconds (15-20 seconds if you're not using a high-speed blender).
  • Pour the mixture through a nut milk bag or a fine-mesh strainer lined with several layers of cheesecloth (don't over squeeze!).
    Optional: Strain twice for super-smooth milk.
  • Enjoy immediately or transfer to a sterilized bottle.

How To Store

  • Fridge: Once bottled, store it in the fridge for 4-5 days, shaking it well between each use. When it's bad, it will start to smell and taste sour/off.
    Freezer: It will freeze for up to 3 months. However, upon thawing, it may be a little gritty and require re-blending for a few seconds and/or re-straining.

Video

Notes

  • Use Dry Oats: Your oats should be completely dry when you add them to the blender. If they’re wet, they won’t soak up as much of the liquid and will give the milk an unpleasant texture.
  • Don’t Over Blend: High-speed blenders work quickly, so you don’t need more than 10 seconds to get the right texture. Over-blending causes heat and friction, which changes the overall composition of the oat milk – making it slimy.
  • Don’t Over-Squeeze: The trick when straining is to handle the oat milk as little as possible. Too much squeezing causes more of the starch compounds from the oats to end up in your milk, which results in a slimy thick texture.
  • Double-Straining: Straining the oat mix twice in the bag will remove any extra pulp and starch that could make the milk slimy.
  • Flavor Options: Add your desired flavoring when blending or when ready to drink. Here are some of my favorite options:
    • Vanilla
    • Maple Syrup or your favorite sweetener. Medjool dates can also work great here if you prefer.
    • Cocoa to make chocolate milk.
    • Strawberries or other berries.
Check the blog post for my favorite ways to use oat milk and how to use leftover pulp to make this recipe zero-waste!
Course: DIYs, Drinks
Cuisine: American, Global
Freezer friendly: 3 Months
Shelf life: 4-5 Days

Nutrition

Serving: 1cup, Calories: 73kcal, Carbohydrates: 14g, Protein: 2g, Fat: 1g, Saturated Fat: 0.2g, Polyunsaturated Fat: 0.4g, Monounsaturated Fat: 0.3g, Sodium: 87mg, Potassium: 68mg, Fiber: 2g, Sugar: 3g, Calcium: 21mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Recipe Rating




111 Comments

  1. Yasna says:

    Can I use OAT BRAN instead of Rolled Oat?

    1. AlphaFoodie says:

      I have to admit, I’ve never tried it so I can’t guarantee how that would affect the flavour and texture of the oat milk. If you try it, let me know how it goes 🙂

  2. C.M. says:

    I’d give this five stars, but I can’t see how to do that. Very good. SO easy! Took less than 5min total. Thank you, Samira!

  3. Smoothie Queen says:

    Thanks for the tips! You seem to be the only one That recommends a half cup of oats and not a full cup of oats to 4 cups of water. That might explain why you said yours wasn’t very creamy. I love your cashew idea however and will try that. I also go 4 to 1 on all of my nut milk recipes.

    1. AlphaFoodie says:

      I’ve tried adding more oats and unfortunately, it quickly becomes slimy. Glad you love cashew idea though – I love the flavor of the oat and cashew combination 🙂

  4. Nelli says:

    Thank you for all the amazing and easy to follow recipes darling!

    For some reason this turned out to be very mild with a water-like taste. Any idea why? Also I feel like the oats didn’t break down enough in that 10sec.

    1. AlphaFoodie says:

      It may be that the machine you used didn’t break them down enough. Try again at 15-20 seconds. The main thing is just to avoid over-blending as that’s when you run into issues with sliminess. You can also add the cashews/cashew butter to the milk for it to become richer and creamier 🙂

  5. NaEshia says:

    Hi,

    Maybe I over looked it, but I don’t see how long I can store it in my fridge.

    1. AlphaFoodie says:

      Hi, It can be stored in the fridge for 4-5 days 🙂

  6. Selene says:

    Thank you so much. Recently we discover that cow milk was making my 10 years old produce mucus so I stop making the banana smothie that he loved so much. Tonigh he had his very first oat banana/straberry smothie and he loved it.

    1. AlphaFoodie says:

      So glad to hear that you’ve been able to find a new favorite for him 🙂

  7. Tanya says:

    Hi,
    I have the same problem with sliminess and still couldn’t nailed it. I will try ur recipe. Though couple of questions:
    1) how many times did u strain?
    2) do u squeeze the nut milk bag when Strain? I am not sure if squeeze it with make it more slimy or not

    1. AlphaFoodie says:

      I only strained it once and made sure not to squeeze the nut milk bag too much, to reduce sliminess 🙂

  8. Tess says:

    What can we do with leftover oats

    1. AlphaFoodie says:

      There are so many options, it’s amazing! – You can use them as part of homemade granola/breakfast topping, wait until dry and blend into a flour for baked goods or even use chunky for oat cookies or flapjacks. Or even use it as part of fruit crumble topping.

      1. Carrie DeSera says:

        Does heating this up make it thick and gloopy?

      2. AlphaFoodie says:

        I’ve not found that to be the case 🙂 I’ve used it in hot drinks before with no issues. Otherwise, I’ll often use it in recipes like porridge or sauces etc – where the results are meant to be thick and/or gloopy but don’t notice a texture difference between using oat milk and another variety.

      3. Hinks Brent says:

        Thanks! Finally a recipe that works!

      4. AlphaFoodie says:

        I’m so glad that you’re enjoying the recipe! 🙂

      5. AlphaFoodie says:

        Whoops – sorry, just noticed you meant the leftover oats. I’ve always dried them out , to use as a ‘flour’ in things – so I couldn’t day for sure. As they’ve been blended so minimally, I would imagine that they would though.

  9. soha says:

    5 stars
    try it today and loooove it

    1. Alpha Foodie says:

      Thanks so much Soha for letting me know :-). So great to hear you liked it 🙂

  10. Gemma says:

    5 stars
    Hello,
    I read all your post and at the beginning you said 1 cup of oaks, but in the list of the ingredients you put 1/2 cup of oaks. Which is correct?
    Thank you for the recipe, I can’t wait to try it!

    1. Alpha Foodie says:

      Hi Gemma, thanks so much for pointing that out. It’s certainly 1/2 a cup not 1 cup. It was a typo and I just edited it. I hope you’re going to like the recipe :-).

    2. Linda says:

      Thank you for the tip about 10 seconds to keep it from getting slimy.
      The only thing I changed was to mix the oat milk first then strain and re mix with the cashews. 10 seconds was not long enough to grind the nuts. But straining it Twice was perfect.

      1. AlphaFoodie says:

        That’s great! I’m glad you’re enjoying the recipe 🙂