During-effort fuel · drink mix · reviewed 3 Sep 2026
Maurten Drink Mix 320 Caf 100 64
Identical carbohydrate and sodium to the standard Drink Mix 320 (80 g, 245 mg) with 100 mg of caffeine folded in, for 36 cents more a sachet ($4.00 vs $3.64).
Score breakdown
Each dimension below is scored 0 to 100 against a fixed scale, not against the rest of the catalog, so adding a product never moves this number. The overall score is the average of the dimensions this product declares data for. How the scales are set →
64/100
Mixed
Based on 3 of 4 measures ?A dimension a product doesn't declare is left out of its average rather than counted against it -- so this score reflects fewer measures than a product with a full panel.
Carb density ?How much fuel one scoop or sachet carries. 90 g is the ceiling here, matching the top of the range cited for multi-transportable-carb intake.89
Sodium ?Sodium carried by the mix itself, on a scale topping out at 1000 mg -- the upper end of what's typically lost to sweat in an hour.25
Value (cost/gram) ?Price of one gram of carbohydrate. Not physiological -- a market-based scale from 15 cents/g (0) to 2 cents/g (100).77
Cost per gram of carbohydrate
5 cents/g
Glucose : fructose · not disclosed
n/d
Comparison
6 of 17 drink mixes heldPrices per single sachet at the cheapest box size we track. Best in green, worst in red, across the gels shown.
| Measure | Maurten Maurten Drink Mix 320 Caf 100 | Tailwind Nutrition Tailwind Endurance Fuel | Skratch Labs Skratch Labs Super High-Carb Sport Drink Mix | Maurten Maurten Drink Mix 320 | Science in Sport SiS Beta Fuel 80 Drink Mix | Precision Fuel & Hydration Precision Fuel & Hydration Carb & Electrolyte Drink Mix |
|---|---|---|---|---|---|---|
| Overall scoreAn average of the various variables measured. | 64 | 48 | 50 | 65 | 66 | 54 |
| CarbohydrateHow much fuel one sachet carries. | 80 g | 25 g | 50 g | 80 g | 80 g | 30 g |
| Glucose : fructoseGoverns how fast you absorb it. More fructose, higher ceiling. | n/d | n/d | n/d | n/d | 1 : 0.8 | 1 : 0.5 |
| SodiumAgainst 400 to 1000 mg an hour typically lost in sweat. | 245 mg | 310 mg | 200 mg | 245 mg | 4 mg | 500 mg |
| CaffeineA preference, not a quality, so it is not scored. | 100 mg | 0 mg | 0 mg | 0 mg | 0 mg | 0 mg |
| ProvenanceWhether that ratio is read off the panel, computed from it, or inferred. | Not disclosed | Not disclosed | Not disclosed | Not disclosed | Stated | Stated |
| Price per sachetWhat one costs. Not comparable across sachet sizes. | $4.00 | $1.03 | $2.62 | $3.64 | $3.87 | $2.13 |
| Cost per gramThe only price that compares across sachet sizes. | 5 cents | 4.1 cents | 5.2 cents | 4.5 cents | 4.8 cents | 7.1 cents |
| Sachets for 90 g/hrHow many you open an hour to hold a 90 g/hr target. | 1.1 | 3.6 | 1.8 | 1.1 | 1.1 | 3.0 |
Verdict
what it does · what it costsWhat it does well
- Identical carbohydrate (80 g) and sodium (245 mg) to the non-caffeinated Drink Mix 320, so it's a direct swap.
- 100 mg of caffeine built into the drink rather than requiring a separate gel or tablet.
- 245 mg of sodium a sachet, more than any Maurten gel and most drink mixes in this set outside Precision's Carb Electrolyte Drink (500 mg).
- Same hydrogel technology and Informed Sport testing as the rest of the Maurten range.
What it costs you
- 36 cents more a sachet than the non-caffeinated Drink Mix 320 for the same carbohydrate and sodium, roughly a 10% premium.
- No glucose:fructose ratio disclosed, the same gap as the standard Drink Mix 320.
- 80 g of carbohydrate in one sachet is a full hour's fueling at 80 g/hr by itself; there's no smaller caffeinated Maurten drink mix.
- 100 mg of caffeine is fixed into the mix -- it can't be dosed separately from carbohydrate the way a gel allows.
Where to buy
Prices and links as last checked. The price next to the name above is per unit at the cheapest box size we track -- a single-unit price below may run higher.
Who this is for
the numbers, appliedThe field tells you what it is. This is who should act on it.
Worth the money if
- You already use Drink Mix 320 and want caffeine folded into your bottle instead of a separate gel.
- You want one product covering both carbohydrate and caffeine for a race.
Look elsewhere if
- You want to control caffeine timing independently of carbohydrate intake.
- You're comparison shopping on price; the non-caffeinated Drink Mix 320 is 36 cents cheaper a sachet for the same carb and sodium.