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Global Sealing SystemsGuangzhou Yijia Packaging Technology Co., Ltd.
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Solution topic

How to Choose Can Filling and Sealing for Freeze-Dried Fruit? Start With Can Type, Sealing Method and Fresh-Keeping Requirements

Freeze-dried fruit can sealing is not only about the sealing machine. First confirm can body material, can-mouth structure, whether a foil liner is used, whether moisture-proof sealing is required, target output, and whether in-line production is needed, then decide between heat-press sealing, induction foil sealing, or capping.

  • Freeze-dried fruit can sealing is not only about the sealing machine. First confirm can body material, can-mouth structure, whether a foil liner is used, whether moisture-proof sealing is required, target output, and whether in-line production is needed, then decide between heat-press sealing, induction foil sealing, or capping.
  • How to choose can sealing for freeze-dried fruit

Real customer problem

We make freeze-dried fruit and want to pack it in jars. How should the sealing method be selected? Moisture protection may require a foil liner.

First determine the packaging route

Freeze-dried fruit can sealing is not only about the sealing machine. First confirm can body material, can-mouth structure, whether a foil liner is used, whether moisture-proof sealing is required, target output, and whether in-line production is needed, then decide between heat-press sealing, induction foil sealing, or capping.

Heat-press Sealing Route (Direct Film Sealing)

Suitable for: Plastic cans, paper cans, composite cans with flat rims, using aluminum foil film or composite film directly heat-sealed onto the can rim. Advantages: Fast sealing speed, low film cost, suitable for high-volume continuous production. Limitations: Can rim flatness and film compatibility affect seal quality; sample testing needed. Not recommended: If can rim has threads or requires secondary sealing (e.g., screw cap), consider induction sealing or capping route. Equipment direction: Can evaluate bottle inline heat sealers or large-diameter drum heat sealers, with molds configured to can size.

Induction Aluminum Foil Sealing Route (Liner Sealing)

Suitable for: Plastic jars, glass jars with aluminum foil liner inside the cap; seal after capping. Advantages: Non-contact sealing, consistent seal, stable moisture and leak resistance. Limitations: Cap must press the foil liner; cap type and torque affect results; sample testing required. Not recommended: For paper or metal jars, induction may be affected; test first. Equipment direction: Evaluate water-cooled induction aluminum foil sealer or benchtop air-cooled induction aluminum foil sealer; select based on diameter and capacity.

Heat-Press Sealing + Cap Pressing Line Route

Suitable for: paper cans or plastic pails, first heat seal aluminum foil membrane, then press outer cap for double sealing. Advantages: multiple sealing layers, better moisture and transport protection, suitable for premium freeze-dried fruit gift boxes. Limitations: requires can mouth flatness and cap structure compatibility; equipment structure relatively complex; sample confirmation needed. Not recommended: when capacity is low or budget limited, start with single heat seal machine, consider cap pressing later. Equipment direction: evaluate paper can/plastic pail foil sealing and capping machine; configure per can, film, and cap samples.

Recommended equipment route: Sample and container confirmation

Can-mouth size, material, and film compatibility determine the sealing method and tooling configuration.

Recommended Equipment Route: Main Sealing Equipment

Choose heat-press or induction sealing according to can-mouth structure and sealing requirement.

Recommended equipment route: downstream sealing and marking

Capping improves sealing protection; coding and labeling provide traceability and brand display.

Route comparison

01Heat-press Sealing Route (Direct Film Sealing)
  • Suitable for plastic cans, paper cans, or composite cans with flat mouths, using foil or composite film heat sealed directly onto the mouth.
  • Fast sealing speed and low film cost, suitable for high-volume continuous production.
  • Can rim flatness and film compatibility affect sealing results and should be confirmed by sample testing.
  • If the can mouth has threads or requires secondary sealing such as capping, evaluate induction sealing or lid pressing.
  • An in-line bottle heat sealer or large-mouth pail heat sealer can be evaluated and configured by can-mouth size.
02Induction Aluminum Foil Sealing Route (Liner Sealing)
  • Plastic jars or glass jars with aluminum foil liners already inside the caps, sealed first and then capped.
  • Non-contact sealing gives good consistency and stable moisture-proof and leak-prevention performance.
  • The cap must press the aluminum foil liner tightly; cap type and torque affect results and need sample testing.
  • For paper cans or metal cans, induction performance may be affected, so testing is recommended first.
  • A water-cooled induction foil sealer or desktop air-cooled induction foil sealer can be evaluated according to mouth diameter and output.
03Heat-Press Sealing + Cap Pressing Line Route
  • Paper cans or plastic buckets: heat-seal aluminum foil film first, then press the outer cap for double sealing.
  • Multiple sealing layers provide better moisture and transport protection, suitable for premium freeze-dried fruit gift packs.
  • Can-mouth flatness and lid-structure matching must be confirmed. The equipment is relatively complex and samples are needed.
  • If output is low or the budget is limited, start with a stand-alone heat sealer and add lid pressing later if needed.
  • A paper can or plastic pail foil sealing and lid pressing machine can be evaluated and configured from can, film, and lid samples.

Core process

01Sample and container confirmation
02Main sealing equipment
03downstream sealing and marking
04Product and Sample Confirmation
05Container and Packaging Material Confirmation
06Core Process Confirmation

Associated Equipment / Consumables

Send samples and capacity requirements for a clearer solution

Freeze-dried fruit can sealing is not only about the sealing machine. First confirm can body material, can-mouth structure, whether a foil liner is used, whether moisture-proof sealing is required, target output, and whether in-line production is needed, th...

01Packaging container
02Core process
03Equipment needed
04Materials
05Capacity and automation
06Sample details
Materials

The thickness and heat-seal layer of aluminum foil or composite film must match the can... / Diameter, thickness, and cap pressing force of the aluminum foil liner affect induction... / Can-mouth contamination, such as freeze-dried crumbs, may cause weak sealing and should...

Sample details

Physical photo or dimension drawing of the freeze-dried fruit can, including diameter,... / Sealing film or aluminum foil liner samples, if available, are used to test compatibility. / Target output, such as cans per hour or per day, affects equipment configuration and sp...

Inquiry

Online Inquiry Form

Please specify container type, sealing material, speed target, sample status, and target market.

Sample details

01Preparation material 1

Photos and dimensions can first determine container positioning, mold direction, and whether sample testing is needed.

Physical photo or dimension drawing of the freeze-dried fruit can, including diameter, height, and rim shape.
02Preparation material 2

Film material and liner affect sealing temperature, pressure, dwell time, and feeding method.

Sealing film or aluminum foil liner samples, if available, are used to test compatibility.
03Preparation material 3

Capacity target determines single machine, semi-automatic, or continuous inline configuration, and also affects the quotation range.

Target output, such as cans per hour or per day, affects equipment configuration and speed.
04Preparation material 4

Inline requirements affect equipment sequence, cycle time matching, and downstream inspection methods.

Whether filling or downstream equipment already exists, and whether standalone or line use is required.
05Preparation material 5

Site conditions affect electrical control, pneumatics, conveyor length, and safety protection configuration.

Site space photo or layout sketch, if available, helps evaluate line integration.

Common selection mistakes

01Can-Mouth Flatness Has Not Been Confirmed
02Film Material and Sealing Parameters Have Not Been Jointly Tested
03lid structure not sent as a sample in advance
04Output and Line Rhythm Not Confirmed
05No Interface Reserved for Downstream Inspection and Marking

Common questions

01Can we determine the direction without complete information?

Yes. Send can sample photos, approximate dimensions, and target output first; we will judge the route first, then list the additional samples or information needed.

02What information needs to be prepared before a quotation?

It is recommended to prepare can samples or dimension drawings, sealing film or aluminum foil liner samples, target capacity, whether inline integration is needed, and site space information. Communication can start even with incomplete data.

03How does capacity affect the configuration?

Capacity determines whether the equipment is standalone, semi-automatic, or fully automatic inline, and whether automatic feeding, cap sorting, and conveying systems are needed.

04Why test consumables or film materials?

Different films have different heat seal temperatures, pressures, and seal quality; sample testing is needed to determine suitable parameters and tooling.

05How to confirm sealing or closure effectiveness?

Sealing performance should be confirmed through samples, film, and parameter testing. Sending samples for sealing tests is recommended.

06How to determine whether a linked line is needed?

If upstream filling or downstream coding, labeling, and checkweighing is required, and output is high, a line-integrated solution should be evaluated.

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