Skratch Labs Super High-Carb Sport Drink Mix vs Maurten Drink Mix 320
·By Croix
Educational, not medical advice. Recipes and dosages are starting points — individual tolerance varies. Consult a healthcare professional or registered dietitian before changing your nutrition strategy. Full disclaimer.
At a glance
| Skratch Labs Super High-Carb Sport Drink Mix | Maurten Drink Mix 320 | |
|---|---|---|
| Carbs per serving | 100 g | 80 g |
| Glucose : Fructose | 12:1 | 1:0.8 |
| Sodium per serving | 400 mg | 200 mg |
| Calories | 400 kcal | 320 kcal |
| Format | Powder | Powder |
| Carb sources | Cluster Dextrin, Fructose | Maltodextrin, Fructose |
| Retail price per serving | $5.24 | $3.75 |
| Cost per gram of carb (retail) | ~$0.052/g | ~$0.047/g |
| DIY cost per serving | ~$3.92 | ~$0.79 |
| DIY savings vs retail | ~25% | ~79% |
What is this comparison about?
Skratch vs Maurten is the clearest chemistry split in premium endurance drinks. Skratch Super High-Carb uses Cluster Dextrin (HBCD) plus a small fructose dose to keep osmolality low at 100 g per serving. Maurten Drink Mix 320 uses maltodextrin plus fructose at the 1:0.8 dual-transporter ratio, then adds alginate and pectin to form its hydrogel in stomach acid.
Both products are expensive because they are trying to solve the same race-day problem: make a very high-carb bottle tolerable. The question is which constraint matters more for you: stomach feel at high concentration, where Skratch's HBCD is the real differentiator, or transporter balance at 80+ g/hr, where Maurten's 1:0.8 ratio is better aligned with the absorption literature.
What do they have in common?
- High-carb powder format for race-day fueling
- Designed for athletes targeting roughly 80-100 g/hr of carbohydrate
- Premium positioning with a real formulation story, not just flavoring
- Meaningfully cheaper to approximate at home with bulk ingredients
- Best tested in training before race day because both are concentrated drinks
Where do they differ?
| Trait | Skratch Labs Super High-Carb Sport Drink Mix | Maurten Drink Mix 320 |
|---|---|---|
| Carb per serving | 100 g per serving, the highest common single-bottle dose in this set. | 80 g per sachet, one bottle for a classic 80 g/hr race-fueling target. |
| Glucose-to-fructose ratio | 12:1, heavily glucose-dominant because Cluster Dextrin carries nearly all the carb load. | 1:0.8, the dual-transporter ratio used by Maurten and SiS Beta Fuel. |
| Main chemistry bet | HBCD's low osmolality keeps a 100 g bottle from feeling as syrupy or osmotically heavy as commodity sugars. | Alginate + pectin hydrogel is intended to change gastric behavior once the drink hits stomach acid. |
| Sodium per serving | ~400 mg sodium, a more meaningful electrolyte contribution. | ~200 mg sodium, enough to matter but still fuel-first rather than hydration-first. |
| Retail price per serving | ~$5.24, driven partly by HBCD's high ingredient cost. | ~$3.75, driven mostly by brand premium and sachet logistics. |
| DIY replication | A faithful HBCD copy is still expensive; a cheap maltodextrin swap loses the low-osmolality reason to choose Skratch. | The maltodextrin + fructose backbone copies cleanly for roughly 80 cents; the hydrogel mouthfeel does not. |
Which one should I actually buy?
Verdict: Tie — depends on use case
Pick Skratch Super High-Carb if your limiting factor is drink feel or GI comfort at very high bottle concentrations. HBCD is the product's actual selling point, and that low-osmolality behavior is most relevant when you are trying to put 90-100 g of carbohydrate into one bottle without making syrup.
Pick Maurten 320 if your priority is a better-supported 1:0.8 glucose-to-fructose ratio at 80+ g/hr, lower retail cost, and a formula that is easier to replicate for daily training. The hydrogel is the part you cannot copy cleanly, but the matched-dose evidence does not make that format a slam-dunk performance advantage.
The practical answer for most athletes: use the product whose taste and stomach feel wins in training, then DIY the commodity-sugar version for lower-stakes rides. These are not magic powders. They are expensive ways to package specific carbohydrate, sodium, and texture choices.
Pick Skratch Labs Super High-Carb Sport Drink Mixif…
- You are trying to fuel at 90-100 g/hr from a bottle and conventional maltodextrin/fructose drinks feel too thick.
- You specifically want HBCD's low-osmolality behavior and accept the higher price.
- You prefer Skratch's real-fruit flavor profile and tolerate it better late in long events.
Pick Maurten Drink Mix 320if…
- You want the 1:0.8 ratio used across Maurten and SiS-style high-carb drinks.
- You are targeting around 80 g/hr and want one sachet to equal one race bottle.
- You want a premium product that has a straightforward low-cost DIY training equivalent.
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Or skip both and DIY
Maurten 320 is the cleaner DIY target: bulk maltodextrin + fructose + salt gets you the same macros for roughly 80 cents. Skratch is different because HBCD is the feature and the expensive ingredient. You can approximate the carb dose cheaply with maltodextrin, but that changes the drink's osmolality and loses the reason Super High-Carb exists.
The ingredients involved
- Cluster Dextrin (HBCD) · An ultra-low-osmolality glucose polymer engineered for the highest carb intakes — premium price, real (but situational) benefit.
- Maltodextrin · The glucose-polymer workhorse in almost every high-carb sports drink — same energy as dextrose, far lower osmolality, nearly tasteless.
- Fructose · The GLUT5-transported sugar that lets you push past the 60 g/hr glucose ceiling — pair with maltodextrin at ~1:0.8 for the modern dual-transporter formula.
- Sodium Alginate · The seaweed-derived gelling agent in Maurten's hydrogel — fascinating chemistry, contested performance benefit.
- Pectin · The fruit-derived gelling agent that pairs with sodium alginate in Maurten-style hydrogels — the second half of the encapsulation chemistry.
- Table Salt (Sodium Chloride) · The cheapest, most-bioavailable sodium source in your kitchen — pennies per gram and chemically identical to what's in any electrolyte tab.