REBBL 20g Cold Brew Latte Protein Shake Review: The Coffee Lover’s High-Protein Elixir

If you’re a coffee lover who also prioritizes protein intake, the quest for the perfect grab-and-go breakfast or post-workout recharge can feel endless. Many coffee protein drinks taste artificial, chalky, or just plain disappointing. That’s where the REBBL 20g Cold Brew Latte Protein Shake enters the scene, promising genuine cold brew flavor, 20 grams of plant protein, and the brand’s signature super herb infusion. In this review, we’ll break down every sip to see if it lives up to the hype.

We’ll explore the taste profile, texture, nutritional value, and how it fits into a busy lifestyle. Plus, we’ll compare it to other REBBL latte options and highlight why this cold brew protein shake is earning rave reviews from coffee snobs and fitness enthusiasts alike.

First Impressions: Packaging and Aroma

The 20g Cold Brew Latte arrives in REBBL’s signature recyclable carton, standing tall at 14 fluid ounces. The label features a rich brown and cream color scheme that immediately cues coffee notes. When you crack the seal, the aroma is unmistakably roasted and slightly sweet — not the fake vanilla scent that some canned lattes rely on. It smells like a proper cold brew that’s been lightly sweetened, which is a promising start.

The shake is shelf-stable, so it’s perfect for tossing into a gym bag or backpack. No refrigeration needed until after opening. The packaging feels sturdy, and the twist-off cap is easy to handle even with sweaty hands. Overall, the presentation is clean and functional.

• Shelf-stable and recyclable carton – great for on-the-go consumption.

Taste Test: How Does It Actually Drink?

The real test for any cold brew protein shake is whether it delivers coffee flavor without the dreaded protein powder aftertaste. REBBL uses a blend of pea protein and other plant-based sources to hit 20 grams of protein, but the cold brew concentrate and a touch of coconut cream provide a natural creaminess that masks any grittiness. The first sip is smooth, with a medium-light body reminiscent of a traditional cold brew coffee that’s been cut with a splash of oat milk.

The sweetness is mild — about 9 grams of total sugar comes from organic coconut sugar and the natural sugars in the protein blend. It’s not cloying, which is a relief for anyone who prefers their coffee black or with just a hint of sweetness. There’s also a subtle earthy note from the super herbs, but it doesn’t overpower the coffee. For comparison, REBBL’s 32g Latte Protein Shake offers a similar coffee base but with a thicker texture and slightly more sweetness due to the higher protein content. If you want a lighter, more refreshing coffee drink, the 20g Cold Brew Latte is the better pick.

Some users report a very faint stevia aftertaste, but it’s barely noticeable unless you’re hyper-sensitive. Overall, this is one of the best-tasting coffee protein drinks I’ve tried — it actually tastes like real cold brew.

• Smooth, creamy texture with no chalkiness.
• Mild sweetness from organic coconut sugar (9g total sugar).
• No artificial coffee flavor — real cold brew concentrate.
• Hint of super herbs but doesn’t dominate the taste.

Nutrition & Super Herb Boost: More Than Just Protein

With 20 grams of plant-based protein, the Cold Brew Latte is designed for muscle repair and satiety, but REBBL doesn’t stop there. Each serving delivers a functional dose of adaptogenic super herbs, including reishi mushroom and ashwagandha. Reishi supports immune health and stress response, while ashwagandha helps the body manage cortisol levels. This makes the shake a smart choice for a calm, focused energy boost rather than a jittery caffeine spike.

Caffeine content comes from the cold brew concentrate — roughly 80–90 mg per serving, comparable to a standard cup of coffee. That’s enough to wake you up without overdoing it. The fat content is moderate (about 8g, mostly from coconut cream), and there’s 6g of fiber from the super herb blend. If you’re watching your sugar or carbs, this shake fits into many balanced diets.

For those who want a similar coffee experience but with extra protein for muscle-building goals, the 32g Latte Protein Shake offers a bolder, creamier version with 32 grams of protein. Meanwhile, the 20g Vanilla Protein Shake is a great alternative if you prefer a sweet, coffee-free base to mix into your own cold brew.

How It Fits Into Daily Life: Versatility and Convenience

The REBBL 20g Cold Brew Latte is designed for on-the-go nutrition. I’ve tested it as a breakfast replacement (paired with a piece of fruit), as a mid-afternoon pick-me-up, and even as a pre-workout drink. In all scenarios, it performed well. The cold brew flavor is clean enough to sip straight from the carton, but you can also pour it over ice for a more indulgent iced latte experience.

I’ve also blended it into smoothies — adding banana and a spoonful of nut butter creates a thicker, meal-sized shake that’s still coffee-forward. Unlike some protein shakes that separate when heated, this one is not recommended for hot lattes, but it’s perfect for cold or room-temperature consumption.

• Great as a breakfast on the go or post-workout recovery.
• Pairs well with ice, smoothies, or as a standalone drink.
• Not ideal for hot beverages; best served cold.

Final Verdict: Who Should Buy the REBBL 20g Cold Brew Latte?

The REBBL 20g Cold Brew Latte Protein Shake is a standout product for anyone who craves real coffee flavor without sacrificing clean nutrition. It’s especially suited for coffee lovers who want a convenient, protein-rich drink that fits a vegan, gluten-free, and non-GMO lifestyle. The functional super herbs add a wellness boost that sets it apart from standard protein shakes.

While the 20g protein content may not satisfy those looking for a post-lifting monster dose (that’s where the 32g line shines), it’s more than enough for daily replenishment or a busy professional’s lunch. If you’re comparing the cold brew latte to other REBBL coffee shakes, the Cold Brew Latte is lighter and more true to actual cold brew than the 32g Latte, which leans creamier and sweeter.

If you’re ready to trade mediocre coffee protein drinks for a genuinely delicious cold brew experience backed by adaptogenic herbs, the REBBL 20g Cold Brew Latte is an excellent choice. For a stronger protein punch with the same coffee vibe, explore the 32g Latte Protein Shake and discover your perfect match.