Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Potato Dirt Tare Percentage
Potato dirt tare percentage measures the share of delivered weight made up of soil or removable field material rather than usable tubers. MassGain converts gross-weight quotes into clean delivered economics by linking tare with freight, washing, disposal, handling, and contract basis.
Market Data
How to read this market
Potato dirt tare percentage measures the share of delivered load weight that is soil or removable field material rather than usable tubers. The market object should be defined by origin, harvest conditions, washing status, sampling method, contract basis, and whether settlement uses gross or net clean weight.
Use tare data to convert quoted gross-weight prices into clean usable delivered cost. Compare suppliers and regions on a consistent sampling basis, then account for freight, washing, disposal, and throughput effects so a cheap gross-ton quote is not mistaken for a low-cost potato supply.
Data Module
Potato Dirt Tare Market Data
MeasureDirt tare as percent of delivered gross weight
BasisConsistent sampling and contract definition
Key dimensionsOrigin, harvest conditions, soil, washing status
Commercial useConvert gross price to clean usable cost
Cost linksFreight, washing, disposal, handling
WatchpointAvoid double counting where settlement already uses net clean weight
Analysis
Why this matters
Dirt tare matters because it changes the economic denominator: the buyer pays to move and handle weight that produces no saleable output. The same farm price can therefore imply very different usable costs across suppliers or crop conditions.
Signals can diverge after wet harvests, when regional tare rises even if potato prices do not. The commercial question is whether elevated tare is a broad field-condition effect or a supplier-specific execution problem, and whether the contract already compensates for it.
Signal 01
Usable Crop Uncertainty Index
UCUI translates crop and market complexity into a simple uncertainty signal. Higher readings indicate greater uncertainty—not necessarily higher prices.
Understand uncertainty. Anticipate risk. Act earlier.
UCUI is designed to analyze potato-industry publications and data signals across regions, varieties, weather, disease, storage, supply, and demand.
WeatherHigh
DiseaseHigh
StorageMedium
SupplyMedium
Single-day snapshot based on a scan of 11,500+ web and social signals. Get historical and real-time data by clicking the button below.
The MassGain Daily
Today’s market analysis.
A daily editorial synthesis of physical potato data, crop signals, market reporting, and what participants should watch next.
September 16, 2026Latest MassGain publication
Potato market steady for now; Russia’s smaller crop is the salient risk
Spot prices are flat and USDA terminal reports read ‘market steady,’ but a renewed forecast for a smaller Russian harvest and recent regional harvest stress leave seasonal import timing and storage losses as the key uncertainty.
Signal 02
MassGain Potato Index
Independent physical-pricing intelligence and market-trend analysis for procurement, forecasting, contracting, and scenario planning.
Core Russet Carton Median
312.45 USD/MT
Latest qualifying physical-market observation
+4.75 (+1.55%)
Price discovery for the physical potato market
MPI is designed to track physical pricing data, price trends, deltas, and divergences across regions and potato types.
Series window45 days
Current public coverageCore russet cartons
Primary source basisQualifying USDA physical rows
UnitUSD per metric tonne
Single-day snapshot based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varieties by clicking the button below.
Signal 03
MassGain Spot Reference
An independent spot reference designed for price discovery, contract discussions, procurement comparisons, and risk modeling.
Russet Burbank — U.S. Midsize
305 USD/MT
Demonstration reference format
+1.6% WoW · Confidence: High
A trusted benchmark for pricing, contracts, and risk
MSR is intended to use real transactions and verifiable physical-market data to support negotiations, price checks, contracting, and risk models.
ProductRusset Burbank
SpecificationU.S. midsize, 40–70 count
Reference typePhysical spot benchmark
StatusIn development
Based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varities by clicking the button below. Full access also includes historical data -- including depreciated NYMEX/CBOE/EEX spot references -- projections, trends, and AI-driven insights.
The MassGain Product Ladder
From insight to intelligence to action
Four integrated products built for the physical potato market, delivered through public pages, reports, exports, dashboards, and API access.
1
Content
Original research, commentary, aggregated news, and market updates.
- What matters right now?
- What is happening out there?
2
UCUI™
Usable Crop Uncertainty Index: an AI-powered signal of crop risk and market uncertainty.
- Understand uncertainty
- Anticipate risk
- Act earlier
3
MPI™
MassGain Potato Index: independent physical-pricing intelligence and trend analysis.
- Price discovery
- Regional trends
- Procurement planning
4
MSR™
MassGain Spot Reference: an independent benchmark for price discovery and risk modeling.
- Contracts
- Negotiations
- Risk models
Content + UCUI + MPI + MSR + API access
Get historical series, regional detail, constituent data, exports, alerts, and direct data access.
Overview
Who is this for?
This page is for growers, processors, packers, procurement teams, quality managers, and settlement users that need to measure potato dirt tare percentage. Dirt tare is the portion of delivered weight attributable to soil and other removable field material rather than usable potatoes. MassGain helps users connect tare results with origin, harvest conditions, soil type, washing status, contract terms, freight, regional norms, and the effect on usable delivered cost.
A low price per gross tonne can be misleading when dirt tare is high because the buyer pays freight, handling, washing, disposal, and possibly storage on non-product weight. The appropriate adjustment should follow a defined sampling and measurement procedure and avoid double counting where the contract already uses net clean weight. MassGain compares current tare with historical supplier and regional patterns, crop and weather conditions, washing costs, plant throughput, and price differentials. Procurement can normalize bids by clean usable tonnes, growers can understand settlement effects, and finance can separate field-condition variance from potato-market movement. The result is a transparent delivered-cost measure that values the potatoes received rather than the gross load and helps teams identify whether elevated tare is an isolated supplier issue or a wider harvest-season condition.
Use Case
Two suppliers quote the same farm price, but one delivers loads with materially higher dirt tare after a wet harvest. MassGain normalizes clean weight, freight, washing, disposal, and line impact. Procurement preserves the supplier relationship but applies the contractual tare adjustment and compares future offers on clean delivered cost.
FAQs
What is potato dirt tare percentage?
It is the share of delivered weight made up of soil or removable field material rather than usable potatoes.
Why does dirt tare affect cost?
Buyers may pay freight, handling, washing, storage, and disposal costs on weight that produces no saleable output.
How does MassGain compare tare fairly?
It aligns sampling and contract basis and converts gross quotes into clean usable delivered cost by supplier and region.
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Data and Methodology
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MassGain uses public, licensed, contributed, and independently derived physical-market information. Source availability and publication schedules vary.
Timing and revisions
Figures may reflect the latest available observation rather than a same-day transaction. Source data and MassGain calculations may be corrected, restated, or revised.
Not transactional pricing
MassGain figures are informational reference values and do not constitute executable bids, offers, settlements, or guarantees that a transaction can occur at the displayed value.
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Content and data are provided for informational and analytical purposes and do not constitute financial, investment, legal, trading, or individualized procurement advice.
Independent publication
Certain observations may be derived from USDA reports. MassGain is independent and is not affiliated with or endorsed by the USDA.
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Public display does not grant rights to reproduce, redistribute, republish, or incorporate MassGain indices or references into commercial products or contracts without authorization.