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

Mill City 6kg vs San Franciscan SF-6

Batch capacity, utilities, and roast-style fit

→ Mill City 6kg

Mill City 6kg wins on installed cost — confirm San Franciscan Roaster Co. dealer support in your region before ruling it out.

Capital outlay: WinnerHourly throughput: WinnerAutomation depth: Close

Lowest street price → Mill City RoastersFaster batches → Mill City Roasters

Also searched: san franciscan sf-6 vs mill city 6kg

Decision picker

What is your primary constraint?

Capital budgetOperating cost / utilities

Batch size you roast most often?

6 kg or less6 kg production

Is gas already permitted on-site?

Yes — gas readyNo — electric only

Choose Mill City 6kg if

• Best price-per-kg in US matches your roast targets
• Gas service and 480 exhaust already permitted
• Budget allows $32,000 USD equipment plus install

Choose San Franciscan SF-6 if

• Artisan build quality matches your roast targets
• Gas service and 500 exhaust already permitted
• Lead time under 18 weeks is critical

Specification matrix

Show differences only

Manufacturer specs and dealer quotes. Throughput model uses SCA 4-minute cooling allowance. Verify all numbers with OEM before purchase.
Spec	Mill City 6kg	San Franciscan SF-6
Batch capacity	6 kg	6 kg
Heat source	200,000 BTU/h gas	195,000 BTU/h gas
Drum / chamber	Carbon steel drum	Hand-built steel drum
Batch time (typical)	11 min	12 min
Throughput (modelled)	24 kg/h	22.5 kg/h
Street price band	$32,000 USD	$58,000 USD
Exhaust	480 CFM	500 CFM
Lead time	8 wks — confirm with dealer	14 wks — confirm with dealer
Automation	Optional RT logging	Manual
Service hub	USA	USA

Batch capacity

Mill

6 kg

San

6 kg

Heat source

Mill

200,000 BTU/h gas

San

195,000 BTU/h gas

Drum / chamber

Mill

Carbon steel drum

San

Hand-built steel drum

Batch time (typical)

Mill

11 min

San

12 min

Throughput (modelled)

Mill

24 kg/h

San

22.5 kg/h

Street price band

Mill

$32,000 USD

San

$58,000 USD

Exhaust

Mill

480 CFM

San

500 CFM

Lead time

Mill

8 wks — confirm with dealer

San

14 wks — confirm with dealer

Automation

Mill

Optional RT logging

San

Manual

Service hub

Mill

USA

San

USA

6kgSF-6

Qualitative scores — verify against your roast program

Why this split

Mill City 6kg leads on the weighted score for most boutiques we modelled.

San Franciscan Roaster Co. stays competitive when artisan build quality outweighs the price gap.

Deep dives

What to verify with your dealer

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

Verify with vendor

• Confirm Mill City 6kg lead time and freight to your dock
• Confirm San Franciscan SF-6 install kit and probe package included
• Ask for three references at similar elevation and batch size

Side-by-side

Mill City Roasters strengths & gaps

Best price-per-kg in US
Short lead time
Basic controls

San Franciscan Roaster Co. strengths & gaps

Artisan build quality
Distinctive roast character
Limited automation

FAQ

Looking for san franciscan sf-6 vs mill city 6kg?

Same comparison — Mill City 6kg is listed first by convention. Verdict and spec matrix are identical either way.

What throughput can I expect?

Modelled: 24 kg/h (Mill City 6kg) vs 22.5 kg/h (San Franciscan SF-6) including a 4-minute charge/cool cycle.

What street price should I budget?

Mill City 6kg: $32,000 USD (As quoted Q1 2026, US factory). San Franciscan SF-6: $58,000 USD (As quoted Q1 2026, US artisan build). Request refreshed quotes — neither includes install.

Which supports Cropster logging?

Mill City 6kg: Yes with RT bridge — confirm with dealer. San Franciscan SF-6: Yes with RT bridge — confirm with dealer.

Decision picker

Specification matrix

Why this split

Deep dives

Side-by-side

Mill City Roasters strengths & gaps

San Franciscan Roaster Co. strengths & gaps

FAQ

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