A hanging-ear drip coffee filter and its sealed outer sachet have different jobs. The filter holds ground coffee over a cup during brewing. The outer package protects the filled filter before use. Treating them as one unspecified “coffee bag” makes it easy to approve the wrong dimensions or overlook a filling-line requirement.
Separate the three packaging levels
MTPak presents filters, individual pouches and optional boxes as parts of a drip coffee offering. The useful purchasing principle is to define each component separately. A gift box can organize portions and carry branding, but it should not be assumed to replace the individual protective sachet.
| Component | Main purpose | Buyer check |
|---|---|---|
| Hanging-ear filter | Hold the dose and support brewing over a cup | Dose fit, filter flow, ear fit and opening |
| Outer sachet | Enclose the filled filter before brewing | Internal space, seal area, opening and barrier evidence |
| Retail or gift box | Group individual portions for presentation | Portion count, arrangement and shipping fit |
Check the filter with your own coffee
Our hanging-ear drip coffee filter bag lists an 8-12 g filling range, a 90 x 110 mm filter and 75 x 55 mm hanging ears, with custom sizes available. These are a starting point for discussion, not a guarantee that every grind or recipe performs identically.
Use the intended ground coffee and dose in a sample. Check whether the arms sit securely on the cups your customers are likely to use. Observe opening, grounds containment and brewing flow. Record the recipe and cup dimensions alongside the result so a later material change can be compared under the same conditions. Agree on the final filter with the filling and coffee teams.
Size the outer sachet around the filled filter
Planning example: a hospitality buyer wants to put an individually wrapped drip filter into a branded carton. The filter, barrier sachet, and retail carton each need a separate drawing and count. First brew the intended dose and grind, then measure the filter after it is filled and folded. Next check that the sachet has room for loading, a clean seal, and an opening the guest can use without tearing the filter ears. Finally check portion count, carton arrangement, and the date or lot-code area. Ask the packing partner whether it supplies premade sachets or forms them from rollstock. This sequence makes a later carton redesign less likely to force an untested filter change. Record which side receives the code and how many servings each carton contains, then verify opening on a filled sachet.
Measure the filter after filling and folding. Leave the space needed for loading and the agreed seal zones; do not derive outer dimensions simply by copying the flat filter dimensions. Confirm tear location and opening clearance so the user can remove the filter without damaging its arms.
Ask for the proposed outer structure and the conditions behind any barrier data. If a gas-flushing step is planned, discuss its controls with the packing partner and assess the finished pack. Do not infer a shelf-life claim from the presence of nitrogen or from an aluminum-looking surface.
Confirm equipment compatibility before artwork
Share whether your partner uses premade bags or forms packs from rolls. Ask them for the required dimensions, roll orientation, registration marks and seal process. Our filter listing specifies ultrasonic sealing; the outer sachet needs its own compatible sealing process. The SPACK SPM-T300 equipment sheet is one example of equipment combining inner and outer packaging, not evidence that all machines use the same settings.
Have the filling partner approve a trial before committing to production artwork. For printed sachets, use the approved dieline and reserve space for lot or date coding. A successful hand-packed sample does not establish automatic-line compatibility.
A useful first enquiry
- Ground coffee dose and preferred filter dimensions.
- Filter only, filter plus outer sachet, or a complete retail set.
- Premade or roll-fed packing, with equipment details if available.
- Estimated quantity and designs or SKUs.
- Destination market and intended storage or distribution conditions.
These are discussion points, not extra mandatory form fields. Start with what you know. Explore single-serve packaging or ask us about filter and outer-pack samples on WhatsApp. We can confirm the missing details before a quotation is finalized.
Record the filter and outer pack separately
Write down grind, dose, filter dimensions, ear fit, extraction check, outer sachet size, opening direction, seal condition, coding area, and retail count. Keeping the two components separate makes it easier to change the barrier or presentation without losing the brew result.
Record the result with the project reference.
In practice
Approve the whole opening sequence.
The filter, protective pack and retail box should work together.
Review the first-time experience
Lay out the unopened retail unit and ask a first-time user to prepare one portion using only the printed instructions. Observe which side they tear, how they remove the filter and whether they understand where the supports belong. Record hesitation as well as obvious failure.
Review the wording and images at final print size; a helpful instruction on a large design screen may become unreadable on the sachet. Keep coffee preparation assessment with the coffee team and use its confirmed recipe when evaluating the brewing result.
Create one component schedule
List the filter reference, outer sachet dimensions, retail portion count and box layout in one document. Add the filling partner and whether components are supplied empty or as part of another agreed service. This makes quotation comparisons and reorders clearer.
If the filter changes, check the protective pack again before assuming the old box remains suitable. Keep the sample set assembled so the next reviewer sees the same arrangement. A collection of loose components from different revisions can look plausible while describing a set that was never actually approved.
