The
open
standard
for cycling
nutrition.
Our first
baby.
Engineered for long rides, long runs, and longer arguments about whether you needed something more expensive. You didn't.
Steal this recipe.
Please.
Exactly what goes into one 60 g sachet of Open Mix 01: quantities, reasoning, limits. The ~1:0.71 glucose-to-fructose split (35 g malto, 25 g fructose) pulls glucose through SGLT1 and fructose through GLUT5 in parallel, letting a gut-trained athlete sustain 100–120 g/h. Everything else is yours to tune. Our numbers are a starting point, not a rule.
- 01Maltodextrin (glucose)35 g35 g
- 02Fructose25 g25 g
- 03Salt0.6 g0.6 g
- 04Potassium Chloride0.15 g0.15 g
- 05Citric Acid0.3 g0.3 g
- 06Flavourto tasteto taste
Want us to do the mixing?
Open Mix 01 ships pre-portioned in 60 g sachets. Same recipe, none of the kitchen scale.
Pay for the
mix, not the
marketing.
Final pricing announced when Open Mix 01 ships. The recipe is published and free to mix at home. The sachets are for people who would rather not weigh powders at 06:00 on a Saturday.
Reading material.
Cycling nutrition without the marketing layer. Citations included. Forks encouraged.
How much carbs per hour cycling: the 60/90/120 g/h decision.
The 60 g/h ceiling is a single-carb limit, not a universal one. Add fructose and the door opens to 100 to 120 g/h. The full reasoning, the trial-grounded numbers, and a practical dose-by-duration breakdown.
Maltodextrin vs cyclic dextrin vs glucose: does it matter?
Cyclic dextrin sells at 4× the price on a claim about gastric emptying. We pulled the trials side by side — here's what actually moves the needle and what's marketing.
Six myths about endurance carb fuelling.
The gut can only absorb 60 g/h. Carbs make you fat. Maltodextrin is processed garbage. Fructose is poison. Natural sugars are better. Just eat a banana. We checked all six against the actual literature — Jeukendrup, Stanhope, WHO, EFSA — and what holds up is rarely what the back of a sachet claims.
Why we publish the recipe.
Sports nutrition is maltodextrin, fructose, a pinch of salt. The rest is branding. Here's why hiding the formula is the part we refuse to do.
Reasonable
questions.
Drink mixes deliver carbs and fluid in one move. At hard efforts your stomach tolerates liquid faster than solids, and you need water with the carbs anyway. Concentrations around 6 to 8% empty fastest (Jeukendrup, 2014). Gels work but stack quickly; bars and bananas are great after the ride, not during. One bottle of Open Mix is 60 g of carbs you can sip across an hour without thinking about it.
Most cyclists fuel at 60 to 90 g/h. A gut-trained athlete on a dual-carb mix can sustain 100 to 120 g/h reliably (Jeukendrup, 2014). The 60 g/h ceiling is the limit for single-carb (glucose-only) products because SGLT1 saturates there. Add fructose and you open the GLUT5 transporter, roughly doubling the absorption rate. Start at 40 to 50 g/h on easy rides and add 10 g/h each week.
No. Maltodextrin is short chains of glucose. Your gut hydrolyses it to glucose in seconds. It exists because pure glucose is hygroscopic and tastes aggressive; maltodextrin gives the same monosaccharide hit with lower osmolality and a cleaner mouthfeel. The 'processed' framing conflates structure with harm. For endurance fuel, it is the same fuel with better delivery.
Same chemistry: maltodextrin and fructose at roughly a 1:0.8 glucose-to-fructose ratio, plus salt. Same physiological effect at race-relevant doses. Different packaging: Maurten coats the carbs in a calcium-alginate hydrogel, claiming smoother gastric emptying. Independent studies (McCubbin et al., 2020) have not consistently replicated that benefit. The carbohydrate is doing the work in both products.
Yes, if you want 100 to 120 g/h. Start at 40 to 50 g/h on easy rides and add 10 g/h each week. Your gut tolerates feedback poorly at first and then suddenly very well. The training adapts both gastric emptying and transporter density. Two to three weeks of progressive practice is usually enough to handle 90 g/h comfortably.
Because there's nothing to guard. Sports nutrition is solved chemistry: maltodextrin, fructose, salt. Pretending otherwise is the business model we're opting out of.
No. Caffeine is a great tool, but it's your tool. Drop a tab, drink a gel, sip a flat coke. Whatever your stomach tolerates at hour three.
Made from corn-derived maltodextrin and crystalline fructose. No gluten, no dairy, no nuts, no soy. Produced in a facility that handles other carbohydrate powders.
Mix Co.