Last updated: 22 March 2026

This is an opinion piece. Views expressed are the author's own and do not constitute professional advice. This review contains affiliate links. If you sign up or purchase through our links, we may earn a commission at no extra cost to you. Our opinion remains independent.

Cool Factor: 4/5

This Overherd oat milk review covers what it's actually like to live with powdered oat milk day-to-day, from the first scoop in a morning coffee to cooking with it weeks later. Overherd is a UK-made oat drink powder that replaces heavy cartons with a lightweight pouch you mix with water at home. It sounds almost too simple, but after putting it through its paces, we think it's one of the smartest sustainable kitchen swaps going. Here's the full verdict.

What is Overherd?

Overherd is a Yorkshire-based company that launched in 2023 with a single, sharp idea: oat milk is roughly 90% water, so why ship the water? Their product is a powdered oat drink that you mix at home. Each 800g pouch makes around 8 litres of oat milk and starts from £6.99 for the smaller 4-litre pouch. The ingredients list is refreshingly short: organic gluten-free oats (68%), coconut MCT powder, chicory root fibre, calcium carbonate and vitamin B12. No seed oils, no gums, no added sugar and no preservatives.

The brand has built a strong following quickly, with over 40,000 customers and a 4.9 out of 5 rating on Trustpilot from nearly 1,000 reviews at the time of writing.

First impressions

The pouch arrives in a slim cardboard box. Inside, you get the powder in a recyclable LDPE pouch and a bamboo fibre scoop. If you go for the starter set or subscribe, you also get a glass mixing bottle with measurement markings, which is a nice touch.

The packaging is minimal and thoughtful. There's no unnecessary plastic, no glossy inserts, and the pouch itself is small enough to tuck into a kitchen cupboard without taking up any real space. Compared to the shelf a four-pack of oat milk cartons demands, it's a noticeable difference.

In use: taste, texture and versatility

The mixing process is simple: add roughly 25g of powder (one scoop) to 250ml of water, shake, done. No blender required. The result is a smooth, slightly creamy oat milk that's lighter in colour than most carton versions but honestly tastes just as good, if not better.

In coffee, it dissolved cleanly with no clumping or separation. We tested it with Exhale Coffee (our current favourite healthy coffee brand) and the two paired brilliantly. It didn't curdle, which is a common gripe with cheaper plant milks. In tea, it performed well too, though if you like a really milky brew, you may want to add a touch more powder than the standard ratio suggests. The beauty of a powder format is that you control the creaminess.

We also tested it in porridge, a white sauce and a smoothie. All three worked without issue. The porridge was probably the standout: it came out creamier than when we've used carton oat milk. The coconut MCT in the formula seems to add a subtle richness without any detectable coconut flavour.

One of the practical wins is how little waste there is. You make exactly what you need. No more half-used cartons lurking in the fridge until they go off. Over a month of use, the difference in food waste was noticeable.

Sustainability credentials

This is where Overherd really pulls ahead. By removing the water from the equation, the pouches use around 91% less packaging by weight than traditional cartons. They're also roughly 10 times lighter to transport, which cuts delivery emissions significantly. Overherd claims total CO2 savings in the 25-30% range versus liquid oat milk, before you even factor in reduced food waste.

The pouches are LDPE recyclable, which means you can drop them into the soft plastics collection at most major supermarkets. Overherd is transparent about the fact that they chose plastic over compostable alternatives because, in practice, most compostable packaging ends up in landfill when councils don't offer industrial composting. That kind of honesty is refreshing from a brand in this space.

The product is made in the UK, shipped via Royal Mail Tracked, and the oats are certified organic and gluten-free. According to Overherd's FAQ page, the oats are currently grown in Europe, with plans to source British oats in the future.

Value for money

At the time of this Overherd oat milk review, the 800g pouch (8 litres) is priced from £6.99 direct, which works out to under 88p per litre. That's competitive with most branded carton oat milks on supermarket shelves, many of which cost £1.50-£2.00 per litre. If you subscribe, the price drops further, and you get a free glass bottle thrown in.

If you're new to Overherd, you can get 15% off your first order by signing up through our link. There's also a 60-day money-back guarantee, so you're not taking much of a risk.

Compared to other powdered milk alternatives, Overherd stands out on ingredient quality. Many competitors use seed oils or gums as fillers. Overherd uses coconut MCT instead, which is pricier to produce but results in a cleaner, creamier product. You're paying a small premium for noticeably better ingredients.

Get 15% off your first Overherd order

The verdict

Overherd does almost everything right. It tastes genuinely good, the ingredients list is clean, the sustainability angle is backed by real numbers rather than vague claims, and the value stacks up well against carton oat milk. The powder format also solves real everyday annoyances: no more heavy shopping bags, no more wasted milk, and no more fridge space eaten up by cartons.

The only thing holding it back from a full 5/5 is that it's not quite a like-for-like swap in every situation. If you want something to froth for a flat white at home, you'll probably still reach for a barista-grade carton. And the slightly thinner appearance (even when it tastes fine) might put off anyone who judges their milk by how it looks in the cup.

Overall, a solid 4/5 Stone cold. Overherd impressed us with its genuinely clever approach to a problem most people don't even think about, backed by clean ingredients and strong value for money. It didn't quite reach Ice cold because of those minor limitations for barista-style drinks, but for everyday use in coffee, tea, cereal and cooking, it's a brilliant swap. If you're curious, check out our Overherd detail page for the full breakdown and a discount on your first order.

Frequently asked questions

Is Overherd oat milk any good?

Yes. It tastes smooth and creamy, works well in hot drinks, cereal and cooking, and has a 4.9/5 Trustpilot rating from nearly 1,000 reviews. The ingredient list is cleaner than most carton oat milks, with no seed oils or added sugar.

How much does Overherd cost per litre?

The 800g pouch makes 8 litres and starts from £6.99, which works out to under 88p per litre. That's cheaper than most branded oat milks in UK supermarkets. Subscribing brings the price down further.

Is Overherd gluten-free?

Yes. Overherd uses certified gluten-free organic oats, grown in separate fields to prevent cross-contamination. The product is tested to meet gluten-free certification standards.

How does Overherd compare to Oatly or Minor Figures?

Overherd is a powder you mix at home, so it's a different format. On taste, it's comparable to standard (non-barista) carton oat milks. The main advantages are longer shelf life, less packaging waste and lower cost per litre. The main trade-off is that it won't froth as well as dedicated barista formulations.

Can you use Overherd oat milk powder for frothing?

You can use it in coffee and it dissolves well, but it's not specifically designed as a barista milk. For latte art and thick foam, a barista-grade carton will still perform better. For a standard coffee with milk, Overherd works perfectly.

Is Overherd oat milk powder sustainable?

Overherd claims 91% less packaging versus cartons and CO2 savings in the 25-30% range from reduced transport weight and less food waste. The pouches are LDPE recyclable via supermarket soft plastics collection points, and the product is made in the UK.

---

More from CoolCuration

• Exhale Coffee review – We tested the UK's healthiest coffee brand for taste, quality and value.
• Best vegan meal kits UK – The top plant-based meal kit boxes compared for taste, value and convenience.
• Oddbox: rescue wonky fruit and veg – Cut food waste and save money with a weekly box of surplus produce delivered to your door.
• Grubby discount code – Get money off your first order of Grubby's plant-based recipe kits.
• Ocean Bottle – A reusable bottle that funds the collection of ocean-bound plastic with every purchase.
• Shower Blocks – Plastic-free, vegan shower gel bars that actually lather properly.