Squeeze Solution with Fluid-Bags for Tahini

Fluid-Bags replaces buckets, drums and rigid IBCs across the full logistics chain. The 1000-liter bag is a flexible, single-use system with a food-grade inner liner. It stretches to full capacity during filling, maintaining an airtight seal that protects tahini from oxygen, moisture and contamination throughout transport.

Tahini is valuable, but too much of it never makes it out of the container. The product tends to separate during storage and transport, which can cause various problems. It is often shipped over long distances, sometimes between continents, and by the time it arrives, the oil and solids may have separated. This makes it hard to get the tahini out of large containers. Using smaller containers like buckets makes handling easier, but it also increases packaging and shipping waste and costs.

Most tahini in global bulk trade still moves in 15-20 kg pails, 200-liter drums, or rigid intermediate bulk containers (IBCs). Each format involves its own set of trade-offs. Fortunately, there’s a better way to handle it; from airtight filling to efficient transport to squeezing the last drop out.

How Squeeze Solution works for tahini

Tahini moves efficiently in the Squeeze Solution system; from filling to the last gram at discharge.

Squeeze Solution offers two different options for handling tahini:

  • Option 1: The product is mixed directly inside the bag when it arrives at its destination. This is important because tahini naturally sediments during transport. Without mixing, the product will have less oil at the beginning and mostly oil at the end. Squeeze Solution provides a system to mix the product inside the bag.
  • Option 2: The product is transferred to a separate mixing tank. In this case, a discharge roller together with a membrane pump is used to discharge the tahini from the bag without mixing it first. The full 1000 liters is moved into a mixing vessel, where it can then be properly mixed.

Squeeze Solution offers complete systems for both options and can also provide tailored solutions to meet specific customer needs.

A key part of the system is the Fluid-Bags, which are food-grade certified and designed for both rotational and single use. The bags are filled and emptied in an airtight way, minimizing the risk of contamination.

» Click here to get in touch with us and explore the options.

Image: Stretched Fluid-Bags for optimal emptying and discharge.

Tahini is a thixotropic material, which means its viscosity drops under mechanical force and recovers at rest. The discharge roller exploits this directly: progressive mechanical pressure lowers the paste’s flow resistance and keeps it moving consistently to the outlet, even after weeks of transit.

Many of our customers reports residual levels can be as low as 1% of bag contents.

» Click here to explore our customer cases from various industries.

Typical set-ups for sea freight or land transport

Two Fluid-Bag sizes are available as bulk packaging for tahini:

  • 900 liters (264 US gal) for sea container transport. Dimensioned to fit standard 20-ft and 40-ft shipping containers efficiently, improving utilization grade compared smaller alternatives.
  • 1000 liters (237 US gal) for truck and inland transport. Larger capacity per unit for road distribution and cross-border trucking, where shipping dimensions are less restrictive.

Both formats use the same closed-system principle, and the wooden pallet option works as a one-way solution (no return transport needed). After emptying, the components are separated for local recycling.

Recommended Fluid-Bag configuration for tahini

Squeeze Solution with Fluid-Bags for tahini
Primary use International sea freight, and/or inland distribution of tahini in bulk.
Container type Fluid-Bag with wooden pallet (one-way transport), or steel pallet (multi-use).
Capacity per bag 900 or 1000 L (237 or 264 US gal)
Inner liner Multi-layer barrier film, food-grade
Outlet 2-inch valve recommended for tahini
Filling Pneumatic filling station on weigh scale.
Emptying Discharge roller or stretching equipment connected to existing or new pump set-up.
Logistics model One-way: No return transport
Rotation: Established return routes
Internal: From bulk production to filling and packaging lines
Certifications Food-grade; FSSC 22000 (Food Safety System Certification), ISO 9001, ISO 14001, Responsible care, and more.

Note: The outlet size, pump specification and machine configurations are set based on your product’s exact viscosity profile and storage temperature. We assess this during the consultation to find the best solution possible.

For tahini producers: filling the Fluid-Bag

The Squeeze Solution filling process of Fluid-Bags is closed from the moment the bag is stretched to the moment it is sealed; eliminating airborne contamination at the fill step.

The filling station stretches the empty bag to full capacity before filling begins. This maximizes volume, positions the outlet valve correctly and prevents air ingress. Pneumatic filling stations can be placed on weigh scales for precise, repeatable filling weights.

For producers scaling up from manual pail, bucket, drum or IBC filling – the common starting point in Ethiopia, Macedonia, Turkey and other producing regions – the Fluid-Bag system integrates into existing production flows.

Configuration is adapted based on production volume, viscosity and fill-location constraints.

Image: Filling Station on scale. This Fluid-Bag has steel pallet for efficient multi-use.

For tahini receivers: efficient discharge of a thixotropic paste

The discharge roller or stretching station pair with a pump recovers near-complete product from every Fluid-Bag; including tahini paste that has firmed or partially separated during transit.

Tahini’s viscosity and characteristics make the emptying equipment crucial. Fortunately, the Fluid-Bag fits all the common pump set-ups, making the transition to those flexible IBCs.

Combined with the discharge roller, which works the Fluid-Bag from top to bottom and exploits tahini’s thixotropic properties to maintain flow, the system feeds directly into mixing tanks without an intermediate open-transfer step.

» Click here to learn more about the emptying process.

Case: International tahini transport – from 20 kg pails to 900-liter Fluid-Bags

A tahini manufacturer in East Africa ships to Middle East. The switch to Fluid-Bags eliminated return transport, reduced manual handling at both ends, and cut residue to below 1% per bag.

The producer manufactures from Humera sesame and exports to a receiver in Israel, where tahini is discharged into mixing tanks and repackaged into retail and foodservice formats including glass jars and 70 kg pails.

Previously, shipments moved in 20 kg pails; intensive manual handling at both ends, significant plastic waste per shipment, measurable product left in each container.

After switching to 900-liter Fluid-Bags, a stretching device ensures precise, hygienic filling at origin. The semi-automatic discharge roller handles the high-viscosity paste at the receiving end, leaving approximately 5 kg residue per 900-liter bag, which translates to below 1% of bag contents.

Additionally, the one-way system eliminates container return transport between countries. All components are separated for local recycling after emptying.

Talk to a tahini bulk-handling specialist

Whether you’re a tahini producer or a bulk receiver, we start with your specific operation and recommend the configuration that fits your needs.

» Click here to book a video meeting or send an e-mail to our experts.

Image: Contact us to find the best solution for your tahini bulk packaging needs.
FAQ

Frequently asked questions about Fluid-Bags for tahini

How can Fluid-Bags handle tahini’s tendency to separate during transport?

The discharge roller applies progressive mechanical pressure to the bag, which lowers the paste’s flow resistance and keeps it moving consistently to the outlet, even when partial oil separation or firming has occurred during transit.

Oil separation is a fundamental property of tahini that no container eliminates entirely, but the Squeeze Solution emptying process is suited to work with it.

What type of pump is required to empty a Fluid-Bag filled with tahini?

A progressive cavity pump (PCP) is the correct choice for tahini. Centrifugal pumps are less suitable for paste viscosities in the range of thousands to tens of thousands of centipoise, but the Fluid-Bag fits both options.

During emptying, the pump works in combination with the discharge roller, which maintains consistent feeding pressure at the outlet throughout the emptying cycle.

We can specify the pump set-up based on your product’s viscosity and temperature profile, as well as the operational environment.

Is the Fluid-Bag system food-grade?

Yes. The Fluid-Bags are manufactured in controlled conditions using food-grade standards. Our production facilities are FSSC 22000 (Food Safety System Certification 22000) certified, with HACCP processes in place to ensure strict quality control. The inner containers meet both EU and FDA standards, and can be irradiated when needed to achieve the required hygiene level.

What is the difference between the 900 L and 1000 L Fluid-Bag formats?

The 900-liter Fluid-Bag is dimensioned for sea container shipping; it fits efficiently within standard 20-ft container space and stacking height. The 1000-liter format is used for truck and inland transport, where freight dimensions are less restrictive and the slightly larger volume per bag is an advantage. Both formats use the same bag design, filling station and discharge equipment.

» Click here to learn more about the configuration of the Fluid-Bags.

Does the one-way system mean no return transport?

Correct. The Fluid-Bag with wooden pallet is a single-use system. After emptying, all components – inner liner, outer bag, pallet – are separated for local recycling. There is no requirement to return containers to the filling site. For international routes, this removes a significant logistical and cost friction point compared with returnable drums or rigid IBCs that need washing or reconditioning.

» Click here to read about the three different logistics options; one-way, rotation and internal use.

How do the Fluid-Bags compare with a rigid IBC?

For one-way international shipments and high-viscosity products where near-complete product extraction matters, a Fluid-Bag has clear practical logistic and operational advantages.

A rigid IBC offers genuine advantages over buckets and drums (fewer containers per shipment, pump-compatible geometry and better container fill rates). Its limitations for tahini are that rigid walls cannot mechanically assist product discharge, that cleaning and reconditioning require validated procedures if the IBC is reused, and that return transport from receiver to producer adds cost.

At what annual volume does switching to Fluid-Bags make economic sense?

The case becomes clear when annual tahini volumes exceed approximately 20-30 tonnes (20 000-30 000 kg) and when international transport is involved. At that scale, eliminated return logistics, improved container fill rate and reduced manual handling labor typically give clear economic advantages.

Can the system handle tahini with additives such as lecithin or emulsifiers?

Yes. Lecithin and other stabilizers reduce oil separation rate and may lower viscosity slightly, which makes discharge easier. The outlet size, emptying equipment and pump specification are set based on the specific viscosity profile of your formulation, assessed during the initial configuration consultation.

Does the Fluid-Bag protect tahini from Salmonella contamination?

The closed system with Fluid-Bags eliminates the open-transfer steps between filling and discharge. The bag does not sterilize tahini; roasting is the validated kill step for Salmonella, as confirmed by peer-reviewed research. It removes the contamination pathway, not the organism itself.

Do you want to know more?

Our team combines technical knowledge with industry insight to deliver guidance for your specific needs.

» Click here to contact us and get ready to take the next step toward efficient transport of tahini in bulk.

Strive for the better

The courage to [[squeeze through]]

Innovation meets resistance. And since 1984, we’ve been helping companies challenge the status quo and find better ways to handle liquids and semi-solids.

Our solution serve manufacturers and end-users across industries and products: adhesives, sealants, coatings, inks, lubricants, cosmetics, foods, pharmaceuticals, and more.

Maximal squeeze for minimal waste. Let’s pioneer together.