Brix is the measure of soluble sugars in fruit, read in degrees Brix with a refractometer. It is built by healthy photosynthesis plus the right potassium and finishing nutrition. To raise it, protect late-season leaf area and light on the fruit, supply adequate potassium to move sugars into the fruit, keep micronutrients balanced, avoid late excess nitrogen that dilutes sugars, and run a finishing program as fruit ripens. Target Brix varies by crop and variety.
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Why does Brix matter?
Higher Brix means better flavor, better shelf appeal, and often a better price. Brix Boost is positioned as a fruit-sweetening fertilizer using phosphorus, potassium, and trace elements to improve taste and Brix. Two blocks of the same variety can differ widely in Brix - which means it's something you can actively manage.
How do you measure Brix?
Use a refractometer to read Brix (°Bx) on representative fruit at harvest; track block to block and season to season. Aim to lift your own baseline, since target Brix varies by crop and variety.
What drives Brix?
- Healthy late-season leaf area and good light on the fruit
- Adequate potassium to move sugars into fruit
- Balanced micronutrients supporting photosynthesis
- Avoiding late excess nitrogen that dilutes sugars
- A dedicated finishing program as fruit ripens
Which Vegalab program supports Brix?
| Role | Product | Use |
|---|---|---|
| Sugar enhancer | Brix Boost | Fruit-sweetening fertilizer (P, K, trace elements) |
| Potassium drive | Potassium Pro | Moves sugars into the fruit |
| Finish builder | Harvest Pro | Late-season fruit development |
See crop-specific solutions
Good to know
Product claims, rates, and availability vary by jurisdiction; always follow the applicable label.