drum roasters

San Franciscan SF-6

the San Franciscan SF-6 is a 0.5–2.7 kg gas drum drum roaster from San Franciscan Roaster, built in USA, with manual controls.

the spec

batch capacity
0.5–2.7 kg
heat source
gas drum
control
manual
made in
usa

the verdict

the SF-6 sits in the small cafe and artisan roaster category, handling 0.5 to 2.7 kg per batch. that's roughly 1 to 6 pounds of green coffee, which gives you enough capacity for a small retail program or steady wholesale accounts without jumping to a 10 or 15 kg machine. like all San Franciscan roasters, it's manual: gas valve and airflow controlled by hand, no computerized profiles unless you add a third-party controller. the upside is nimble heat adjustment and fast response when you need to react to a roast. the downside is that you're doing the work every time. build quality is solid, with the same schedule 40 steel drum and hand-fabricated construction as the rest of the lineup. if you're roasting many different single-origin lots and want control, the SF-6 fits. if you're planning to scale quickly or need automation for consistency, consider whether you'll outgrow the batch size or the manual workflow.

strengths

  • 0.5 to 2.7 kg batch range covers small cafe and artisan production
  • manual gas control and quick thermal response for profiling
  • schedule 40 steel drum for consistent heat transfer
  • hand-fabricated in the USA with serviceable parts

trade-offs

  • manual operation requires skill and attention
  • no built-in automation or profile software
  • batch size may limit growth for roasteries scaling up quickly

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