Most buyers choose a price. The best buyers choose a supplier. The difference rarely shows on the first order. It shows later: in a customer complaint, a shipment that arrived oxidised, a private label that did not taste the same in the second run as it did in the sample. The oil you put your name next to becomes your reputation, not your supplier's, so the decision deserves more rigor than a price list.
We have made extra virgin olive oil in Les Garrigues, Lleida, since 1945, and we ship it to more than 140 countries. This is the framework we would use to evaluate an olive oil supplier from the buyer's side of the table. None of it is specific to us. It is what good looks like.
First, define the category you actually need
"Olive oil" spans an enormous range, from lampante that is unfit for consumption until refined, to a single-varietal extra virgin harvested green and milled within hours. The label states the legal minimum, not the quality or the stability. Decide what your market and margin require, then make every supplier prove their oil meets that standard rather than the legal floor. The International Olive Council sets the trade grades and the analytical definitions behind them.
1. Quality, measured rather than described
Tasting notes are easy to write. Numbers are harder to fake. Ask for the analytical parameters of the specific lot you would receive, not a generic sheet: free acidity, peroxide value, and the ultraviolet coefficients K232 and K270. If you sell on health or a high-phenolic positioning, ask for total polyphenols in mg/kg.
| Parameter | EU extra virgin limit | What premium looks like |
|---|---|---|
| Free acidity | ≤ 0.8 g/100g | Well below 0.2 |
| Peroxide value | ≤ 20 meq O₂/kg | Low, indicates freshness |
| K270 | ≤ 0.22 | Low |
| K232 | ≤ 2.50 | Low |
| Total polyphenols | Not regulated | >250 high-phenolic; 325 to 500+ in premium single varietals |
As a reference, the 250 mg/kg threshold qualifies an oil as high-phenolic. Our JANIROC single varietals run above 325 in Arbequina, above 450 in Lecciana and above 500 in Koroneiki, at an acidity below 0.2. The figures matter less than the behaviour: a serious supplier hands you lot-level data and a certificate of analysis before you ask twice.
2. Certifications that match your destination
Organic is not one global standard. EU Organic, the USDA National Organic Program and Japan's JAS are separate schemes linked by equivalence arrangements, and as the importer you carry the responsibility. The same applies to food safety standards such as IFS and BRCGS, and to Halal and Kosher for the Gulf, Southeast Asia and Israel.
| Region | Scheme | Note |
|---|---|---|
| European Union | EU Organic | Required for organic claims in the EU |
| United States | USDA NOP | Equivalence arrangement with EU organic |
| Japan | JAS Organic | Separate certification, check current status |
Ask which certifications a supplier holds, request the current certificates, and confirm they cover your destination. For reference, our own production is certified to EU Organic (CCPAE) and USDA Organic (NOP), to IFS and BRCGS for food safety, and to Halal and Kosher, with current certificates available on request.
A supplier who gestures at "all the certifications" without producing documents is one you will be chasing during a customs hold.
3. Producer or trader: the question that sorts the market
This single distinction explains most quality and consistency problems in the trade.
| Producer (vertically integrated) | Trader / broker | |
|---|---|---|
| Origin | Known, single estate or controlled groves | Often unknown or mixed |
| Traceability | Field to bottle, auditable | Limited to the purchase point |
| Consistency | Controlled across lots and harvests | Varies with the open market |
| Fraud exposure | Low, short chain | Higher, longer chain |
| Who answers technical questions | The people who made it | The people who resold it |
We operate a fully vertical model: our own organic groves, our own mill, our own bottling, with traceability from field to bottle. When you ask a supplier where the oil comes from, the speed and specificity of the answer tells you most of what you need.
4. Consistency across harvests, not just within a sample
Any supplier can send a good sample. The real test is whether order twelve matches the sample, and whether next year matches this year. Consistency comes from controlling the variables: harvest timing, milling temperature, time between picking and extraction, and lot selection. We harvest early, keep olive temperature controlled in the field, move fruit to the mill within roughly thirty minutes, and run near-infrared analysis on every lot to set extraction precisely. If a supplier's answer to "how do you guarantee consistency" is "experience," keep asking.
5. Supply model and formats: bulk, bottled or private label
Decide early whether you need finished bottled product, bulk oil to pack yourself, or a private label built to your brand. Each carries different implications for price, minimums, lead time and packaging. Bulk runs from drums to IBC totes and flexitanks; bottled and private label raise questions of glass versus PET, tin, bag-in-box, and labelling compliance for your market. A capable supplier handles all three and is honest about which fits your volume.
6. Shelf life, packaging and transport
Olive oil degrades through oxygen, light, heat and time. A premium oil packed or shipped badly arrives mediocre. Ask how the oil is protected, what best-before dating applies, and whether enough usable life remains for your distribution cycle. A supplier who treats logistics as your problem alone will cost you in returns.
7. Commercial terms, stated plainly
Price per litre means little without the terms around it. Clarify minimum order quantities, Incoterms, payment terms and lead times. Olive oil is an agricultural commodity with a campaign cycle and real price volatility between harvests. A supplier who can explain how campaign and availability shape pricing will not surprise you mid-contract.
8. Authenticity and fraud risk
Olive oil is among the most adulterated foods in the world: false origin, blending with lower grades or non-olive oils, and inflated extra-virgin claims are well documented. Your defence is traceability and verification, supported by the international standards of the Codex Alimentarius and the IOC. The closer a supplier sits to the grove, the smaller the surface for fraud.
9. Service and partnership, not just transactions
Over years, a supplier's value lies in what is not on the price list: responsiveness when something goes wrong, willingness to share specifications and samples, support for your sales team, and stability through a poor harvest. Ask how they handle a quality complaint. A good answer is specific and unglamorous.
10. Sustainability as commercial value
Retail and foodservice buyers increasingly require credible environmental credentials, and consumers increasingly pay for them. Look for documented practice, not language: organic certification, regenerative soil management such as structured cover crops, biological pest control, and water managed to real plant need. Vague "eco" claims without evidence become a liability you inherit.
- No lot-level certificate of analysis, or reluctance to provide one.
- Cannot state the origin of the oil, or the answer changes between conversations.
- Certifications named but never documented.
- A price far below the market with no explanation of how.
- Samples that are not from the same lot you would be shipped.
- Logistics and shelf life treated entirely as the buyer's problem.
- No clarity on what happens in a poor harvest year.
Questions to ask any supplier before you commit
- Can you send the certificate of analysis for the specific lot I would receive?
- Which certifications do you hold, and do they cover my destination market?
- Do you grow and mill your own oil, or source it? Can you trace it to origin?
- How do you guarantee consistency between lots and harvests?
- What formats do you offer: bulk, bottled, private label?
- How is the oil packaged and protected in transit, and what shelf life remains on arrival?
- What are your MOQs, Incoterms, payment terms and lead times?
- How do you handle a quality complaint?
Frequently asked questions
How do I evaluate an olive oil supplier?
Assess them on measurable quality (acidity, peroxide value, K270 and polyphenols at lot level), certifications valid for your destination market, traceability and production model, batch-to-batch consistency, supply formats, logistics and shelf life, commercial terms, and how they handle quality issues. Ask for documents rather than descriptions.
What certifications should an olive oil supplier have?
At minimum, organic certification valid for your market (EU Organic, USDA NOP or JAS, which connect through equivalence arrangements) if you sell organic, and a recognised food safety standard such as IFS or BRCGS. Halal and Kosher matter for the Gulf, Southeast Asia and Israel. Always request the current certificates and confirm they cover your destination.
What is the difference between an olive oil producer and a trader?
A producer grows, mills and bottles its own oil and can trace every litre to the grove. A trader buys oil on the open market and resells it, often without knowing the exact origin. Buying from a producer reduces fraud exposure and improves consistency and traceability.
What is the best acidity for extra virgin olive oil?
The legal ceiling for extra virgin is 0.8 g per 100g, but that is a maximum, not a quality target. Premium single varietals run well below it. A lower acidity, alongside low peroxide value, indicates healthy fruit and careful, fast extraction.
Can I get olive oil as bulk, bottled or private label?
Yes. A capable supplier offers all three: bulk in drums, IBC totes or flexitanks; finished bottled product; and private label built to your brand and your market's labelling requirements. Which one fits depends on your volume, margin and lead time.
The standard to hold a supplier to
It reduces to one idea: a supplier you can verify is worth more than a supplier who is cheap. Verification comes from proximity to the grove, measurement at every step, and the willingness to put it in writing. If you are evaluating suppliers, request samples and full specifications, or arrange a call with our export team. We will send the analytical data for the exact lots available, and you can hold us to every point on this page.