The Roaster Desk

By Kai Nakamura · Production roaster & equipment editor · Updated 2026-09-17

Giesen W1A vs Mill City 1kg

Sample-lab throughput and data export

→ Mill City 1kg

Mill City 1kg wins without gas permitting — but verify 3.5 kW panel capacity first.

Utility install: TrailsAutomation depth: Close
Lowest street price → Mill City RoastersFaster batches → GiesenNo gas line → electric platform

Also searched: mill city 1kg vs giesen w1a

Decision picker

What is your primary constraint?
Batch size you roast most often?
Can you run dedicated electric service?

Specification matrix

Batch capacity

Giesen

1 kg

Mill

1 kg

Heat source

Giesen

45,000 BTU/h gas

Mill

3.5 kW electric

Drum / chamber

Giesen

Steel sample drum

Mill

Carbon steel drum

Batch time (typical)

Giesen

8 min

Mill

9 min

Throughput (modelled)

Giesen

5 kg/h

Mill

4.6 kg/h

Street price band

Giesen

$28,000 USD

Mill

$8,500 USD

Exhaust

Giesen

180 CFM

Mill

150 CFM

Lead time

Giesen

12 wks — confirm with dealer

Mill

6 wks — confirm with dealer

Automation

Giesen

Giesen Sample Software

Mill

Artisan/Cropster via RT

Service hub

Giesen

Netherlands

Mill

USA
Airflow ctrlThermal stab.Drum speedAutomationCapex value
W1A1kg

Qualitative scores — verify against your roast program

Why this split

Mill City 1kg leads on the weighted score for most boutiques we modelled.

Giesen stays competitive when production-quality sample roaster outweighs the price gap.

Airflow path through a commercial drum roaster from burner to cyclone
Typical drum roaster airflow: burner → drum → cyclone chaff collector

Deep dives

Electric vs gas site work

Mill City 1kg skips gas permitting — but panel upgrade may equal gas line cost.

Get MCA off the nameplate and a load calc from a licensed electrician before lease signing.

Verify with vendor

  • • Panel spare capacity in amps
  • • Utility demand charge on peak kW
What to verify with your dealer

Neither OEM publishes binding street prices — quotes move with queue and freight.

Verify with vendor

  • • Confirm Giesen W1A lead time and freight to your dock
  • • Confirm Mill City 1kg install kit and probe package included
  • • Ask for three references at similar elevation and batch size

Side-by-side

Giesen strengths & gaps

  • Production-quality sample roaster
  • Profile transfer to W-series
  • Limited to 1 kg batches

Mill City Roasters strengths & gaps

  • Affordable sample roaster
  • Electric = no gas permit
  • Single-phase limits

FAQ

Looking for mill city 1kg vs giesen w1a?
Same comparison — Giesen W1A is listed first by convention. Verdict and spec matrix are identical either way.
What throughput can I expect?
Modelled: 5 kg/h (Giesen W1A) vs 4.6 kg/h (Mill City 1kg) including a 4-minute charge/cool cycle.
What street price should I budget?
Giesen W1A: $28,000 USD (As quoted Q1 2026, NL factory). Mill City 1kg: $8,500 USD (As quoted Q1 2026, US factory). Request refreshed quotes — neither includes install.
Which supports Cropster logging?
Giesen W1A: Aftermarket probe required. Mill City 1kg: Yes with RT bridge — confirm with dealer.

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