Inner only, or inner and outer
Inner-only machines make the filter bag with hangers and leave you to pack it. Inner and outer machines seal each filter bag into a printed envelope. Five of thirteen listings named the outer envelope.
No DramaBuyer guide · Coffee & tea
A drip bag machine has to make two packs at once, the filter bag with its paper hangers and the sealed outer envelope that keeps oxygen out, and many quotes cover only the first, so ground coffee packed on them goes stale within days.

01
Inner-only machines make the filter bag with hangers and leave you to pack it. Inner and outer machines seal each filter bag into a printed envelope. Five of thirteen listings named the outer envelope.
Nonwoven drip filter is usually welded ultrasonically; heat-seal filter needs heat jaws. The welding method must match the filter roll you buy. Ask which filter materials were proven on the machine.
The paper hangers must sit square on the bag so it hangs on a cup rim. Ask how hangers are fed and glued or welded, and what happens when the hanger roll runs out.
Drip bags hold small doses, and volumetric cups drift as grind and oil change. Ask the accuracy measured on your grind, and whether a servo auger is offered.
Ground coffee stales quickly in air. A nitrogen flush into the envelope helps only if residual oxygen is measured. Ask what figure was measured and how.
02
Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.
03
| Require this | A pass looks like |
|---|---|
| Run a counted batch of your coffee into your filter and envelope film at target speed. | Every filter bag has both hangers square and closed, every envelope sealed and printed in register. |
| Weigh each filled filter bag from the run. | Every bag inside your declared tolerance, spread recorded, not averaged. |
| Brew sample bags on a cup and check the envelope with an oxygen analyser. | Bags hang without tipping, no grounds pass the filter, and envelope oxygen at or below the level you set. |
04
05
A tea bag packing machine, built for leaf density and tea filter papers.
A co-packer, or pre-made drip filters filled by hand and sealed into envelopes, until volume holds steady.
06
We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.
07
Every machine we source in this area is on the Coffee & tea page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.
Straight answers
Compare the outer envelope station, ultrasonic welding on your filter, dosing accuracy on your grind and spare horn supply. Origin matters less than those four.
Hanger position, weighed bags, envelope seals and print register, oxygen in envelopes, a brewing test, and the serial number matching the declaration.
Machinery rules, 2006/42/EC until 19 January 2027 and Regulation (EU) 2023/1230 from 20 January 2027, with 2014/35/EU and 2014/30/EU, plus Regulation (EC) 1935/2004 for coffee-contact parts.
The business placing the machine on the EU market, which checks the conformity documents and adds its name and address.
Contact
Send a machine, a quotation you want checked, or a question. We reply with what we would look at first.
Sent
A person reads every message. You will hear back within one working day.
Not sent
Please email info@nodramachina.com directly and we will pick it up from there.