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Specs

Format: Pre-filled reusable 5-serving flask (approximately 5 oz)

Flavors available: Nocciola (Hazelnut-Chocolate), Peanut Butter, Peanut Butter-Chocolate

Carbohydrate source: Maltodextrin (complex carbohydrate, no added refined sugars)

Carbohydrates per serving: Approximately 19-20g

Calories per serving: Approximately 100 kcal

Fat per serving: 2.5-3.5g (from nut ingredients)

Protein per serving: 1g (from nut ingredients)

Servings per bottle: 5

Caffeine: None (all three nut flavors are caffeine-free)

Vegan: Peanut Butter and Peanut Butter-Chocolate: Yes. Nocciola: No (contains non-fat dry milk in hazelnut paste).

Allergens: Peanut Butter and PB-Chocolate contain peanuts. Nocciola contains dairy.

Certifications: Kosher (OK: PB and PB-Chocolate), Kosher Dairy (OK: Nocciola), Gluten-free

Flask reusability: Yes: dishwasher safe. Refill from Hammer Gel 26-serving jug.

Shelf life: 5 years from manufacture date

Usage: 1 serving 10 min before plus every 45 min during exercise. Consume with 16-26 oz plain water per hour.

FAQ

Why are only nut flavors available in the 5 Serving Bottle format?: Each of the three nut flavors (Nocciola, Peanut Butter, and Peanut Butter-Chocolate) contains 1g of protein and 2.5 to 3.5g of fat per serving from their nut ingredients. This additional fat and protein makes them more calorie-dense and suitable as primary fuel during ultra-distance efforts beyond 3 hours, where the body benefits from a more varied macronutrient profile in the fuel source.

How many hours of fueling does the 5 Serving Bottle provide?: At the standard protocol of one serving every 45 minutes, the flask provides approximately 2.5 to 3 hours of fueling. You can adjust serving size to extend or shorten this duration as needed.

Can I refill and reuse the flask?: Yes. The flask is reusable and dishwasher safe. Once empty, rinse the flask and nozzle, then refill from a Hammer Gel 26-serving jug. Refilling from a jug significantly reduces your cost per serving.

How do I use the Hammer Gel flask during a ride?: Consume one serving 10 minutes before exercise and one serving every 45 minutes during exercise, alongside 16 to 26 oz of plain water per hour. For efforts over 3 hours, the nut-based flavors can serve as your primary fuel source. Transition to Perpetuem or Sustained Energy as primary fuel if needed on very long efforts.

Are all three flask flavors vegan?: No. Nocciola (Hazelnut-Chocolate) contains non-fat dry milk as part of the hazelnut paste and is not vegan. Peanut Butter and Peanut Butter-Chocolate are vegan-friendly.

Best For

Cyclists, ultrarunners, and endurance athletes doing efforts over 3 hours who want a clean, reusable flask format for on-the-move fueling. The nut-based flavors are the right choice for ultra-distance events where caloric density and sustained energy from fat and protein matter alongside carbohydrate delivery. Also ideal for athletes who want to try the flask format before investing in a 26-serving jug.

Hammer Gel - 5 Serving Bottle Reviews:

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