Protein coffee in the UK: make a decaf protein latte at home

Protein coffee is simply coffee combined with a protein ingredient, commonly milk or a separately prepared protein drink. To make a decaf version at home, brew a strong decaf espresso, let it cool for a minute and stir it into protein powder already mixed smoothly with cold milk. Pour over ice or warm gently if you prefer a hot drink. The coffee provides the flavour; the protein content comes from the other ingredients.

It is an appealing idea for anyone who likes the taste of a latte but wants to build a drink around their own ingredients. No specialist machine, branded protein coffee or elaborate gym routine required. We would advise against trying to dry-whisk whey into a boiling mug of espresso. Your drink deserves better than little floating dumplings.

Why protein coffee is appearing on UK menus in 2026

On 14 October 2026, Caffè Nero and Myprotein announced two new drinks for UK coffee shops: an Iced Vanilla Protein Latte and an Iced Vanilla Protein Matcha Latte. The companies said the coffee version contains 25g of protein and the matcha version 24g. The launch follows Caffè Nero’s reported 52% growth in its iced drink sales during its latest financial year. The launch is a UK product development, rather than evidence that a decaf protein latte is already on their menu. You can read the 14 October 2026 UK trade report.

There is established UK search interest too. Google Keyword Planner’s UK historical estimates, checked on 30 October 2026, put protein coffee at about 6,600 average searches a month over the previous twelve months. The narrower protein iced coffee term averages about 1,300 a month. These are rounded search estimates, not measured I Love Decaf visits or proof of a month-on-month surge. A notable coffee-shop launch gives a familiar drink a new reason to be discussed.

Decaf protein coffee recipe: an iced vanilla latte

Time: about five minutes, plus cooling if your coffee is very hot. Makes: one drink. The measurements are a starting point, not a universal protein target. Follow the portion directions on your chosen protein ingredient and check its allergens.

Ingredients

• 30 to 40ml strong freshly brewed decaf espresso, or a similarly concentrated decaf coffee
• 150 to 200ml cold milk or suitable plant-based milk
• One labelled serving of an unflavoured or vanilla protein powder, or a smaller amount to taste
• Ice cubes
• A little vanilla extract, optional, if the protein powder is unflavoured
• A teaspoon of maple syrup or sugar, optional, depending on the sweetness of your chosen powder

Method

1. Brew the decaf coffee. Set it aside briefly so it is no longer piping hot
2. In a shaker or lidded jar, mix the protein powder with 100ml of the cold milk. Shake until there are no dry pockets. A small hand whisk works too
3. Add the remaining milk and taste before adding any sweetener
4. Fill a tall glass with ice, pour in the milk mixture and add the cooled decaf espresso slowly
5. Stir for a consistent drink or leave the coffee layered for a minute if you enjoy the look
6. Drink freshly prepared, following any storage advice on the protein product label

Want a stronger coffee taste? Increase the espresso slightly instead of doubling the powder. Want the drink less sweet? Choose an unflavoured powder, then add vanilla and sweetener yourself. The sweetness of pre-flavoured mixes varies considerably between brands.

Can you make hot protein coffee without lumps?

Yes, provided you mix the powder with cool liquid first. Protein powders behave differently under heat, so the cautious method is to dissolve the powder in a small amount of cold milk, warm the rest of the milk separately and add the hot coffee in stages. Keep the drink warm rather than boiling after the protein is mixed in. If it separates or turns grainy, use a lower temperature next time.

A handheld milk frother can help with texture, although some ingredients foam and others do not. Avoid shaking hot liquid in a sealed jar because pressure can build. Mix cold first and warm in an open jug. For a dairy-free version, choose a plant-based powder and milk combination that you like separately before committing both to the cup.

Which protein ingredient is worth using?

Whey-based powders tend to mix differently from pea, soy or other plant proteins, and some flavoured products contain sweeteners that can overpower coffee. Ready-to-drink protein milk is convenient, but it may already be sweet and flavoured. Ordinary milk contributes some protein even when no powder is used. The amount varies by product, so use its UK nutrition label rather than assigning an invented number to a homemade cup.

Choose the mix for flavour, dietary requirements and price per serving. Check milk and soy allergens, any other ingredients and whether the powder is intended for preparation with hot liquids. Nothing in this recipe turns coffee into a medical treatment or guarantees a particular nutritional outcome.

Which decaf coffee should go into a protein latte?

A balanced espresso works particularly well because the coffee needs to stand up to a generous amount of milk. Everyday Italiana Decaf Coffee is a verified I Love Decaf product made with Brazilian Arabica beans. It is medium roasted, water processed and sold as beans or ground coffee. Use the grind appropriate for your machine and brew the coffee a little more concentrated than you would for a black cup.

A decaf coffee still contains a small amount of caffeine. If your real aim is a lower-caffeine drink, selecting decaf instead of a regular espresso changes the coffee component while leaving you free to choose the milk and protein ingredient. See our existing guide to caffeine in decaf for the detail. For a separate milk and foam technique, our cold foam guide covers a different preparation.

What to do when the flavour is wrong

• Too powdery: pre-mix with cold liquid for longer or use a smaller powder portion
• Too sweet: use an unflavoured mix and add sweetness independently
• Weak coffee flavour: brew a slightly more concentrated decaf espresso
• Grainy when hot: lower the temperature and combine the mixtures more gradually
• Too thick: add a little extra milk or water and avoid adding several thickening ingredients together

Frequently asked questions

Is protein coffee the same as a protein shake?

Not always. Some people add brewed coffee to a ready-made protein shake. Others make a latte with milk and protein powder. The ingredients, serving size and nutrition differ, so the name alone tells you very little.

Can I use decaf instant coffee?

Yes. Dissolve a suitable amount of instant decaf in a small volume of water, let it cool and mix it into the prepared milk. Check its strength before adding more liquid, as a weak coffee base can disappear into a large glass of milk.

Does decaf protein coffee contain no caffeine?

No. Decaffeinated coffee generally retains a little caffeine. The protein ingredient does not remove what remains.

Can I make it without protein powder?

Yes. Milk contains some protein, but a plain milk latte and a formulated high-protein drink are not nutritionally interchangeable. Use the actual nutrition information for your ingredients.

Is this Caffè Nero’s recipe?

No. This is an independent home recipe for a decaf coffee drink. The Caffè Nero and Myprotein launch is the dated UK news hook, not a claim of endorsement or a copy of the company’s formulation.

Start with the coffee: Browse Everyday Italiana Decaf Coffee for a proper decaf espresso base, then choose the milk and protein ingredient that suits your taste. The espresso should taste like coffee, even when it is sharing the glass.

Sources and image credit: UK coffee-shop launch reported by BeverageDaily on 14 October 2026. UK historical keyword estimates: WLW Keyword Planner, checked 30 October 2026. Featured photograph shows a latte and black coffee, not the finished protein recipe: Bex Walton, Wikimedia Commons, CC BY 2.0, no editorial changes to the original image.