Single-dose packaging has become a strategic solution for industries that require precise dosing, product protection, and high levels of production efficiency. Among the most widely used formats in industrial Form-Fill-Seal (FFS) lines are the stick pack and the sachet, two alternatives extensively implemented in sectors such as pharmaceuticals, nutraceuticals, food, cosmetics, and chemicals.
The stick pack is a flexible, single-dose packaging format characterised by its long, narrow tubular shape and three seals. It is usually produced on multi-lane Vertical Form Fill Seal (VFFS) machines, which are capable of manufacturing several packs simultaneously from a single roll of material.
During the manufacturing process, the film sheet is divided into different lanes or tracks. Each lane forms an individual tube via longitudinal seals, whilst transverse seals define each product unit. Once the contents have been dispensed, the pack is sealed and cut automatically.
The geometry of the stick pack allows for optimised material usage and maximised production speed, particularly in high-volume applications.
The most common products in this format include:
Its main advantages include high productivity, reduced packaging material per dose, and ease of transport and storage.
However, it also has certain limitations. Its narrow design restricts the maximum fill volume and may be less suitable for high-viscosity products. Furthermore, the surface area available for printing, branding and regulatory information is significantly smaller than that of a sachet.
A sachet is a single-dose flexible packaging format consisting of a flat pouch sealed on all four sides. It is one of the most versatile formats within flexible packaging due to its ability to adapt to a wide range of sizes, volumes and product types.
Sachets can be manufactured using either Vertical Form Fill Seal (VFFS) or Horizontal Form Fill Seal (HFFS) machines, depending on the product characteristics and production requirements.
Unlike stick packs, sachets offer a considerably larger front and back surface area, making it easier to include graphics, legal information, instructions for use and marketing messages.
This format is suitable for a wide variety of products, including:
The dimensional flexibility of the sachet makes it possible to produce packaging ranging from small single-dose samples to larger-capacity formats, adapting to different marketing and distribution strategies.
For this reason, many companies consider it a particularly suitable solution when versatility is required in terms of product, format or packaging design.
Although both formats fall into the category of single-dose packaging, there are significant differences in terms of packaging engineering and production efficiency.
| Criterion | Stick Pack | Sachet |
| Geometry | Tubular and narrow | Flat pouch sealed on 4 sides |
| Typical capacity | Low to medium | Low, medium, or high |
| Production speed | Very high | Medium to high |
| Material consumption | Lower | Higher |
| Product compatibility | Powders, granules, and some liquids | Powders, liquids, gels, and creams |
| Sealing complexity | Longitudinal and transverse seals | Four perimeter seals |
| Machinery type | Multilane VFFS | VFFS or HFFS |
| Printable surface area | Limited | Ample |
| Format flexibility | Lower | Higher |
| Per-unit cost (large scale) | Generally lower | Generally higher |
From an industrial perspective, the stick pack is usually the most efficient option when the main objective is to maximise the production of dry products in small doses. Conversely, the sachet is the better choice when greater flexibility is required in terms of product, volume or graphic design.
The machine’s technology directly influences the performance of each format and accounts for much of the difference in their operation.
Stick pack machines utilise multi-channel architectures designed to operate with multiple simultaneous production lanes.
Their main features are:
In high-volume industrial applications, these machines can achieve significantly higher productivity levels than other flexible packaging technologies.
Sachet machines offer a more flexible configuration that can be adapted to different types of product.
Their main advantages include:
Although they do not usually reach the extreme speeds of some multi-channel stick pack lines, they offer greater versatility for manufacturers with diversified product portfolios.
The choice between stick packs and sachets should be based on objective technical and operational criteria. Although both formats can serve similar purposes, their characteristics mean that each is better suited to specific production scenarios.
Stick packs are usually the best option for:
Sachets are better suited to:
Multi-lane stick pack lines are designed to maximise productivity and can produce hundreds or even thousands of packs per minute, depending on the number of lanes and the format.
Sachet lines, whilst also capable of operating at high speeds, tend to prioritise flexibility over maximum output.
Stick packs generally require less film per dose, which helps to reduce the unit cost.
However, when the product requires a larger format or a greater surface area for branding, the additional cost of the sachet may be fully justified.
Stick packs are typically associated with:
Sachets are typically used when the aim is to achieve:
The final decision must balance production needs with commercial and regulatory requirements.
| Industry | Stick Pack Applications | Sachet Applications |
| Pharmaceutical | Oral rehydration salts, powdered medications, mineral supplements, single-dose pediatric formulas | Oral suspensions, therapeutic gels, dermatological creams, topical treatments |
| Nutraceutical | Protein powders, vitamins, sports supplements, functional blends | Energy gels, liquid supplements, clinical nutrition, multi-component formulas |
| Food | Instant coffee, sugar, sweeteners, instant drinks, seasonings | Sauces, ketchup, mayonnaise, liquid condiments, food concentrates |
| Cosmetics | Promotional powder samples, specific single-dose treatments | Shampoos, face masks, moisturizers, serums, personal care products |
| Chemical | Industrial additives, powdered catalysts, granulated reagents | Liquid detergents, concentrated cleaning products, specialized chemical treatments |
The choice between stick packs and sachets usually depends on the physical characteristics of the product, the dosing requirements and the production objectives. Generally speaking, stick packs are predominantly used for high-volume applications involving powders and granules, whilst sachets offer greater flexibility for liquids, gels and viscous formulations.
The profitability of a packaging line depends on a number of variables that go beyond the initial cost of the machinery.
Thanks to its narrow, tubular design, the stick pack typically offers a better ratio between product volume and the surface area of film used.
This advantage can lead to significant savings when annual production reaches tens or hundreds of millions of units.
Productivity is usually measured using indicators such as:
Multi-channel stick pack machines excel in this regard, as they produce multiple packages simultaneously.
In contrast, sachet lines tend to offer greater operational flexibility, although typically at lower speeds for equivalent applications.
Factors such as:
affect maintenance time and line availability.
The assessment should be carried out taking into account the total cost of ownership (TCO) and not just the purchase price of the equipment.
Manufacturers typically analyse metrics such as:
For high-volume production and dry products, stick packs generally offer lower unit costs.
When product versatility is a priority, sachets can provide better overall cost-effectiveness despite a higher unit cost.
The decision should be based on technical and economic criteria, not solely on aesthetic or marketing considerations.
In high-volume applications involving dry products, a multi-channel stick pack system usually offers considerably higher productivity.
Some liquid or semi-solid formulations may present filling difficulties in stick pack configurations designed for free-flowing products.
Seemingly small differences in film usage can translate into significant additional costs when producing millions of units a year.
Sectors such as the pharmaceutical industry require detailed information on the packaging. In such cases, the limited surface area of the stick pack can become a significant constraint.
Packaging technology must be adapted to the product and the anticipated business growth, not the other way round.
The main difference is the shape. A stick pack has a narrow, tubular shape, whilst a sachet is a flat pouch sealed on four sides.
Generally, stick packs require less packaging material per unit produced, particularly in low-volume applications.
Multi-channel stick pack machines typically achieve higher speeds thanks to simultaneous production across multiple lanes.
Sachets generally offer greater compatibility with liquids, gels, creams and high-viscosity products.
The sachet has a significantly larger surface area for branding, instructions and regulatory requirements.
The pharmaceutical, nutraceutical, food, cosmetics and chemical sectors commonly use both stick packs and sachets, depending on the specific requirements of each product.
In high-volume production and for dry products, the stick pack usually has a lower unit cost thanks to its material efficiency and productivity.
A comparison between stick packs and sachet packaging shows that there is no universally superior format, but rather optimised solutions for different industrial needs.
Stick packs stand out for their high production speed, efficient use of materials and their ability to reduce the cost per unit in high-volume applications, particularly with powders and granules.
Sachets, on the other hand, offer greater versatility in terms of capacity, product compatibility and print area, making them the preferred choice for liquids, gels, creams and products requiring more extensive packaging communication.
For manufacturers, packaging engineers and operations managers, the decision between stick pack and sachet packaging should be based on factors such as product characteristics, production objectives, regulatory requirements and total cost of operation. A proper technical assessment will enable the selection of the most efficient technology and format to maximise line performance and long-term profitability.