Protein Coffee (Proffee): Iced Recipe and Mixing Tips

Iced recipe · Protein calculation · Troubleshooting

Flavor and Tasting Notes

Vanilla powder makes a different drink from chocolate, unflavored whey or pea protein. Some products already contain sweeteners, thickeners or creamers; adding syrup before tasting can make the drink overly sweet. A shake may be thicker than an iced latte, but this depends on the product and dilution.

Choose a coffee you enjoy cold. Increasing bitterness to overpower an unpleasant powder is usually less useful than choosing a powder you like and mixing it properly.

Preparation and Recipe

Makes: one glass, about 240 ml liquid before ice melts. Time: five minutes with coffee already chilled. Equipment: scale, measuring jug, cold-liquid shaker and a 400 ml glass.

1. Chill the coffee. Measure 120 ml fully cooled brewed coffee. Use prepared coffee rather than an undiluted cold-brew concentrate.
2. Make the protein mixture. Add 120 ml cold water to a shaker, then 15 g vanilla protein powder. Secure the lid and shake until the powder is dispersed, following the shaker and product instructions.
3. Combine cold ingredients. Add the cold coffee to the mixture and shake briefly again. Never seal or shake hot or warm coffee in the bottle.
4. Serve over ice. Put 100 g ice in a 400 ml glass, pour in the mixture and taste. Add cold water a little at a time if it is thicker or sweeter than you prefer.

This is a home mixing example, not a product serving recommendation or a meal plan. Use a powder intended for ordinary drink preparation and follow any product-specific directions. BlenderBottle explicitly prohibits hot or warm liquids in its sealed shakers because pressure can force contents out.

Powder vs. A Ready-Made Shake

For a separate variation, combine 120 ml cooled coffee and 120 ml ready-to-drink protein shake over ice. Omit both the powder and the water from the main recipe. This substitution changes the protein, calories and sweetness; it is not automatically nutritionally equivalent.

An iced latte gets its dairy or plant-milk character from milk, whereas proffee uses a deliberately protein-rich ingredient. Neither name tells you the amount in your glass. Choose a dairy-free product when needed; whey and casein are milk proteins.

How to Calculate Protein and Caffeine

Use label protein × powder used ÷ labeled powder serving. For an illustrative label of 24 g protein per 30 g powder, this recipe’s 15 g portion contributes 24 × 15 ÷ 30 = 12 g protein. Those numbers illustrate the arithmetic; use your own label for the actual drink.

For a ready-made shake, scale by liquid volume instead. If its label states 20 g protein per 250 ml, a 120 ml portion contributes 20 × 120 ÷ 250 = 9.6 g. Add any milk contribution separately. Powder weight, scoop count and protein grams must not be substituted for each other.

The caffeine depends on the coffee and any caffeinated ingredients in the protein product. The FDA notes that coffee portions and products vary. Adding protein does not remove the caffeine already in the coffee; decaf can be used but is not necessarily caffeine-free.

Dialing in and Troubleshooting

If you want a hot variation, follow the protein product’s heat guidance and mix in an open vessel. Some formulas clump when heated. Do not transfer the iced shaker method to hot coffee.

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