Drums, IBCs and Bag-in-Box: Bulk Olive Oil Under 20 Tonnes

Buying olive oil in bulk does not have to mean taking delivery of 22 tonnes at once. Below the flexitank threshold, three formats cover most professional needs: the 200-litre drum, the 1,000-litre IBC and the 3-to-20-litre bag-in-box. This guide works through their real payloads, what a 20 ft container carries in each configuration, and how to decide between groupage and a full container ex Tunisia.

Why small-volume bulk deserves its own playbook

Large exporters are built around the full container load: a 21–23 tonne flexitank, an isotank, planned rotations across the campaign. Below that line, the offer thins out. Food SMEs, cosmetics labs, delicatessens, restaurant groups and e-commerce brands looking for 1 to 18 tonnes are routinely told "flexitank minimum". Yet the segment is entirely serviceable — provided you know the intermediate formats and their constraints. For volumes above 20 tonnes, our flexitank vs isotank comparison covers the other side of the decision.

The intermediate formats, one by one

The 200-litre drum: the workhorse of fractional lots

The 200-litre metal drum remains the unit of account for small-volume trade. Filled with olive oil (density ≈ 0.916 kg/L), it holds about 183 kg of product on a tare of roughly twenty kilos.

• Food-contact compliance: new steel drums with a food-grade internal lacquer (epoxy-phenolic), or reusable stainless steel drums for premium oils. Reconditioned drums are only acceptable when certified for food contact, with full traceability of the reconditioner.
• Closures: two bungs (2" and ¾") with fresh gaskets and numbered seals. The format lends itself well to nitrogen inerting before closing.
• Stackability: palletised, drums store two to three levels high in a warehouse.
• End of life: steel is fully recyclable; stainless drums circulate on deposit between the parties.

The 1,000-litre IBC: the bridge to the tank

The IBC (intermediate bulk container) combines a food-grade HDPE bottle, a galvanised steel cage and an integrated pallet. It carries about 916 kg of oil on a tare of 55–65 kg.

• Food-contact compliance: insist on new, food-grade IBCs. HDPE is translucent, so the oil must be shielded from light with an opaque cover and dark storage.
• Discharge: a DN 50 valve at the base plus a top inspection lid — the easiest format to empty, by gravity or pump.
• Stackability: two high in transit when the model is rated for stacking under load; the manufacturer's plate is the reference.
• Stainless option: reusable stainless steel IBCs exist and make sense on regular rotations between the same sites.

Professional bag-in-box: 3 to 20 litres

A multilayer pouch with an EVOH (or metallised) oxygen barrier and a dispensing tap, housed in a corrugated case, has become the standard in food service and direct sales. Its decisive advantage: the pouch collapses as oil is drawn, so the product never touches air again after opening. Common sizes: 3, 5, 10 and 20 litres, palletised in cases.

Jerrycans and pails

HDPE or tinplate containers of 5 to 25 litres are useful for resale as-is or for trials, but the cost per litre is high and unit handling becomes punishing beyond a few hundred litres.

Pallets and the 20 ft container: the numbers that matter

Loading maths often settles the choice of format.

• Drums: 4 drums per 1,200 × 1,000 mm pallet, roughly 730 kg of oil per pallet. A 20 ft box takes 80 drums — loose on two tiers, or 20 pallets of four stacked two high — for ≈ 14.6 t of oil.
• IBCs: 10 IBCs on the floor of a 20 ft container; stacking lifts the practical total to 18 units (door height usually rules out the last two), i.e. ≈ 16.5 t, and up to ≈ 18.3 t at 20 units where the configuration allows.
• Bag-in-box: palletised, a 20 ft container carries in the region of 10–14 t, depending on case format and pallet stacking.
• Flexitank benchmark: 21–23 t in the same container. That payload gap — 30 to 40 % less in drums — accounts for most of the extra logistics cost per litre of the small formats.

Format	Unit capacity	Oil weight	Per 20 ft container	Relative cost per litre	Typical use
Steel drum 200 L	200 L	≈ 183 kg	80 drums ≈ 14.6 t	High	Supplier validation, cosmetics, premium lots
IBC 1,000 L	1,000 L	≈ 916 kg	18–20 ≈ 16.5–18.3 t	Moderate	Small filling lines, industrial users
Bag-in-box	3–20 L	≈ 2.7–18.3 kg	≈ 10–14 t palletised	Highest	Food service, e-commerce, direct sales
Flexitank (benchmark)	≈ 24,000 L	21–23 t	1 bladder	Lowest	Full container load

Protecting quality in small containers

A well-managed small container preserves oil as reliably as a tank — on four conditions.

• Minimal headspace, nitrogen on top: fill as close to the neck as possible, then inert the headspace with nitrogen before closing. It is the direct continuation of upstream storage in nitrogen-blanketed stainless tanks.
• Sealed closures: bungs and valves fitted with numbered seals, recorded at loading and checked at delivery.
• Light: the steel drum is opaque — a clear edge over the translucent HDPE IBC, which needs a cover and a dark warehouse.
• Temperature: aim for transport and storage below 25 °C, away from sun-exposed walls. Olive oil partially solidifies below 10 °C without harm, but repeated hot-cold cycles accelerate oxidation.

Filled to the brim, inerted and kept in the dark, a sealed drum holds extra virgin oil in conditions comparable to a stainless tank for 12 to 18 months. The full set of rules is in our guide to storing bulk olive oil.

Four use cases where small formats win

1. Validating a supplier before a flexitank. Order a few drums or one IBC drawn from the same lot as the future full load: same analyses, same mill of origin, limited exposure. The method is laid out in our guide to choosing a bulk olive oil supplier.
2. Feeding a small filling line. An IBC connects to a transfer pump and swaps out in minutes: the ideal buffer between bulk supply and an SME bottling line.
3. Fractionating a premium oil. Early harvest, organic, single variety: lots of a few tonnes and high value that nobody wants blended into a single bladder. Stainless drums or bag-in-box, depending on the sales channel.
4. Cosmetics. Recurring needs from a few hundred kilos to a few tonnes, with lot-level documentation: drums and IBCs slot straight into the sector's quality workflows.

LCL or FCL out of Tunisia

Below a full container, the buyer has two routes.

• Sea groupage (LCL): regular sailings connect Radès with the main Mediterranean ports. Charging by revenue tonne (weight or m³) plus fixed origin and destination fees weighs heavily on micro-lots; groupage also means multiple handlings — sturdy packaging, corner boards and stretch film are non-negotiable.
• Full container (FCL): from about ten pallets, a dedicated 20 ft box usually becomes the more rational option: one sealed loading, no transhipment, a more predictable lead time. Nothing prevents mixing drums, IBCs and bag-in-box in the same container to build an assortment — a common configuration in our bulk Tunisian olive oil offer.

At delivery: handling and emptying

• Unloading: a pallet truck handles pallets and IBCs; plan a stacker if drums arrive double-tiered.
• Emptying drums: electric or air-operated drum pump; without a drum tipper, expect a residue of one to two litres per drum.
• Emptying IBCs: by gravity through the DN 50 valve or by pump; tilt the container slightly at the end to minimise the heel.
• Empty packaging: arrange take-back (stainless deposits) or recycling (steel, HDPE, cardboard) when ordering, not after delivery.

Mistakes to avoid

1. Comparing ex-works prices instead of landed cost per litre. Between tare, reduced payload and fixed fees, two offers that look identical at origin diverge sharply once landed at your warehouse.
2. Accepting non-food-grade packaging. A "clean" drum without a food-contact certificate or a reconditioned IBC without traceability is a product risk you cannot undo.
3. Ignoring headspace. A three-quarters-full drum is an oxidation accelerator; require complete filling and nitrogen inerting.
4. Forgetting the cost of emptying. Residues, handling time, disposal of empties: across 80 drums, these line items add up to dozens of litres and hours of labour.

Build your first container with Virginia

Virginia ships Tunisian olive oil in drums, IBCs and bag-in-box as well as flexitanks, ex Tunisia, with a COA for every lot and samples before any commitment. Tell us your volumes, your call-off rhythm and your receiving equipment: request a quote and we will price the relevant configurations, including mixed formats in a single 20 ft container.