Table of Contents
14+ years of experience in manufacturing kitchen appliances, is a professional food vacuum sealer manufacturer.
8 Common Vacuum Sealing Mistakes You Need To Know
2026-01-19
8 Common Vacuum Sealing Mistakes You Need To Know
1. Bag Misalignment: Fails to Vacuum or Seal at All
Causes: vacuum packing bags opening not fully in sealing groove, skewed or over the groove edge—machine can’t detect sealing position, air leaks during vacuuming.
Common Scenarios: Rushed bag insertion by newbies, long bags dragging out of place, portable sealer narrow bags misaligned with slots.
Solutions: Smooth bag opening, fully snap into sealing groove (cover entire gasket) without skew/overhang; align with slot marks first for portable vacuum sealer.
Common Scenarios: Rushed bag insertion by newbies, long bags dragging out of place, portable sealer narrow bags misaligned with slots.
Solutions: Smooth bag opening, fully snap into sealing groove (cover entire gasket) without skew/overhang; align with slot marks first for portable vacuum sealer.
.![vacuum sealer and vacuum sealer bag]()
2. Wrong Voltage Connection: Damages Motor Directly
Causes: Ignoring rated voltage (e.g. 110V overseas model → 220V socket) or using mismatched power strips/power banks (portable) — motor gets damaged.
Severe Hazards: Overvoltage burns motor/trips circuit; undervoltage causes weak suction and shortens lifespan.
Severe Hazards: Overvoltage burns motor/trips circuit; undervoltage causes weak suction and shortens lifespan.
Solutions: Check voltage label before use; use original cable for portable sealers, choose 2A+ certified power banks, no fast-charging adapter mix.
3. Lid Not Fully Closed: Keeps Vacuuming but Never Seals
Causes: Lid latch not locked (half-closed) → sealing chamber can’t seal, air keeps entering—vacuum runs non-stop with no effect, motor wears out.
Common Mistake: Thinking "light close is enough", missing the latch click (high-risk for lock-type models).
Solutions: Close lid till "click" sound, confirm seamless fit; check for food residue in groove if lid won’t close.
Common Mistake: Thinking "light close is enough", missing the latch click (high-risk for lock-type models).
Solutions: Close lid till "click" sound, confirm seamless fit; check for food residue in groove if lid won’t close.
4. Uneven Food Sealer Bags Cutting: Leaks After Sealing & Scratches Gasket
Causes: Misusing built-in cutter (wrong position/uneven force) or random scissor cutting →food sealer bags opening frayed, skewed or notched.
Hazards: Frayed edges can’t fit gasket tightly (leaks), may scratch machine gasket.
Solutions: Built-in cutter: Lock roll in slot, align scale and slice gently; scissors: Cut straight slowly, trim 1cm if frayed, ensure no burrs.
Hazards: Frayed edges can’t fit gasket tightly (leaks), may scratch machine gasket.
Solutions: Built-in cutter: Lock roll in slot, align scale and slice gently; scissors: Cut straight slowly, trim 1cm if frayed, ensure no burrs.
5. Deformed/Aged Sealing Gasket: Vacuum Runs Non-Stop
Causes: Gasket deformed/damaged by long-term heat, oil residue or improper storage → sealing chamber can’t seal, machine can’t reach vacuum threshold.
Hidden Issue: Most take it as machine fault, but it’s just a gasket problem.
Solutions: Check gasket (flat, no damage/warping) before each use; wipe with warm water and reset if deformed, replace same-model gasket if hardened.
Hidden Issue: Most take it as machine fault, but it’s just a gasket problem.
Solutions: Check gasket (flat, no damage/warping) before each use; wipe with warm water and reset if deformed, replace same-model gasket if hardened.
6. Food Saver Bags Opening With Residue/Water/Oil: Leaks After Sealing
Causes: Soup, oil or crumbs on 2cm area of bag opening → residue blocks gasket from sticking to bag, no airtight seal.
High-Risk Scenarios: Sealing soupy meat, sauces, grains—leaks cause fast food spoilage.
Solutions: Wipe 1-2cm bag opening thoroughly with dry paper towel (no residue/oil/water); air-dry first if oil is stubborn.
High-Risk Scenarios: Sealing soupy meat, sauces, grains—leaks cause fast food spoilage.
Solutions: Wipe 1-2cm bag opening thoroughly with dry paper towel (no residue/oil/water); air-dry first if oil is stubborn.
7. Overfilling + Insufficient Food Saver Bags Space: Leaks & Damages Motor
Causes: Food overfilled, only <1cm space left at bag opening → food squeezed to sealing area during vacuuming, blocks sealing.
Hazards: Poor sealing (leaks), soup sucked into machine (damages motor), sharp food pierces bag opening.
Solutions: Leave 3-4cm (dry food: grains/nuts), 5-6cm (wet food: leftovers/meat), 8cm (soupy food) — no food touches sealing area.
Hazards: Poor sealing (leaks), soup sucked into machine (damages motor), sharp food pierces bag opening.
Solutions: Leave 3-4cm (dry food: grains/nuts), 5-6cm (wet food: leftovers/meat), 8cm (soupy food) — no food touches sealing area.
8. Sharp/Hard Food Without Protection: Bags Punctured & Vacuum Fails
Causes: Directly sealing bones, shellfish, nuts, hard cheese → bags tighten during vacuuming, sharp edges pierce bags (vacuum loss).
Common Mistake: Thinking "thick bags are puncture-proof" — thick bags still break under sharp pressure.
Solutions: Wrap sharp parts with paper towel/cling film; or put in soft containers first then vacuum-seal; choose thick puncture-resistant vacuum bags.
ReviewsNumber of comments: {{ page.total }}
I want to comment?
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
Reviews
Merchant
{{replyItem.nickname ? (replyItem.nickname.slice(0, 2) + '*****') : replyItem.source === 1 ? 'mall buyer' : '--'}}
{{replyItem.parent_nickname ? (replyItem.parent_nickname.slice(0, 2) + '*****') : '--'}}
{{replyItem.is_merchant_reply === 1 ? replyItem.reply_time : replyItem.comment_time}}
Review in the {{replyItem.country}}
Reviews
No customer reviews
recommended for you
no data
Get in touch with us
Ready to work with us ？
Quick Links
Collection
Contact Us