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.
Myths,
debunked.
The things people repeat at group rides, dinner parties, and in podcast ads, checked against the actual literature.
True for glucose alone (SGLT1 saturates around 60 g/h). Add fructose via GLUT5 and the ceiling moves: Jentjens & Jeukendrup measured ~105 g/h oxidation with a multi-transporter blend, and Visma–Lease a Bike and UAE-Emirates have publicly fuelled 120+ g/h on Grand Tour stages since 2023.
Sources: Jentjens & Jeukendrup 2005
Excess calories make you fat. During endurance work, ingested carbs are oxidised in near real-time. King et al. (2022) tracked >90% oxidation of a 90 g/h drink during cycling. Fat-gain mechanisms (de novo lipogenesis) barely activate while you're moving.
Sources: Rowe et al. 2022
Maltodextrin is partially hydrolysed corn starch (DE 10–20). Brush-border alpha-glucosidase finishes the job in seconds. A high GI is the point during exercise: you want fuel in the blood, not in storage.
Liver-overload studies (Stanhope, Lustig) use sedentary subjects consuming 150–300 g/day of fructose as soda. At 25 g per bottle, taken while you're burning 600–900 kcal/h, fructose clears via GLUT5, refills liver glycogen, and lets you absorb more total carbs. Different dose, different context, different outcome.
Sources: Stanhope et al. 2009 · Rowlands et al. 2015
Glucose is glucose. Fructose is fructose. The brush border has no opinion on whether the molecule arrived via a date, honey, or a sachet. The 2015 WHO and 2022 EFSA reviews flag added-sugar limits for sedentary diets; they explicitly carve out exercise nutrition.
Sources: WHO 2015 sugars guideline · EFSA 2022 added sugars opinion
A medium banana is ~25 g of carbs. To hit the modern 100–120 g/h target you'd need 4–5 per hour, plus the fibre slows gastric emptying, which is exactly what you don't want above lactate threshold. Liquids beat solids past ~80 g/h.
Sources: Burke et al. CHO position stand
Reasonable
questions.
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.
Glucose and fructose ride into your bloodstream on different transporters (SGLT1 and GLUT5). Open Mix 01 lands at 35g maltodextrin : 25g fructose, roughly 1:0.71, which saturates both pathways and lets a gut-trained athlete sustain 100–120 g/h instead of the ~60 g/h glucose-only ceiling. Anywhere in the ~1:0.7 to 1:0.8 window does the job; the exact decimal isn't sacred.
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.
If you want 100–120 g/h, yes. Start at 40–50 g/h on easy rides and add 10 g/h each week. Your gut is a muscle that takes feedback poorly at first and then suddenly very well.
Carbs, yes. Sodium, no. On hot rides bump salt by 0.3–0.6 g per bottle; on cool rides you can ignore it. Your sweat tells you more than our label can.
Sure. It's just fast carbs and electrolytes. Long hikes, ski tours, manual labour, ultras, a brutal moving day. Same physics.
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.