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Precision calculators and simulators built by winemakers, for winemakers. Useful even if you'll never be a Cepaos customer.
Calculate the pre-harvest interval (PHI) and re-entry interval (REI) for vineyard pesticides. Data: EPA · ANSES · APVMA · SENASA · SAG.
Accumulate degree-days from bud-break and predict veraison and harvest by varietal. Weather data: Open-Meteo.
Compute amount per tank, mixing order, and known conflicts. Not a substitute for the jar test.
UC Davis powdery mildew risk index (Gubler-Thomas, 0-100) and Broome et al. (1995) botrytis infection index for the next 7 days, computed from Open-Meteo hourly data.
Compute alcohol by volume two ways: Brix × 0.55 (simple) and SG-delta (accurate). Supports Brix, SG, Baumé, Oechsle and KMW.
Suggests optimal spray windows by combining powdery/botrytis risk with PHI/REI constraints. Not a substitute for grower judgment.
Estimate hours and workforce per block for pruning, tying, leaf-pull and harvest.
Estimate days to harvest from current °Brix, target °Brix and recent accumulation rate.
Estimate how many litres of wine your harvest will make (area × yield or total tonnage) and how many tanks and barrels you need, with a fill plan and an L/hL/gal and kg/q/t converter.
Lists required documents and declarations by market and active modules.
Upload KML or GeoJSON and visualise blocks with hectare area calculation.
Compute Brix:TA ratio and predict style (dry/balanced/sweet) by varietal.
Maximum total SO₂ (mg/L) by wine color, residual sugar and regime: EU, Switzerland, EU organic and Bio Suisse. With verified official sources.
Estimate tariffs, excise duties and VAT by destination country (US, UK, Germany, Switzerland, Canada, Japan and Mexico) with rates verified against official sources.
Work out what it costs you to make a litre and a 750 ml bottle of wine: grapes, inputs, labour, energy, barrels, losses, bottling and overheads. With a breakdown by category and a suggested price for your target margin.
More tools on the way
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