All roaster comparisons
30 named pairs — each with spec matrix and decision picker.
→ KestrelLoring S15 Kestrel vs Diedrich IR-12Recirculation gas efficiency vs IR drum familiarity→ W15AProbat P12 III vs Giesen W15AGerman cast-iron heritage against Dutch variable-airflow engineering→ IR-12Mill City 10kg vs Diedrich IR-12US-built value drum against the IR platform everyone knows→ NighthawkLoring S7 Nighthawk vs Diedrich IR-5Compact convection line against the 5 kg IR workhorse→ IIIGiesen W6A vs Probat P05 IIIDutch airflow finesse vs Probat shop-scale reliability→ SF-6San Franciscan SF-6 vs Diedrich IR-5Batch capacity, utilities, and roast-style fit→ 6kgMill City 6kg vs San Franciscan SF-6Batch capacity, utilities, and roast-style fit→ KestrelLoring S15 Kestrel vs Probat P12 IIIClosed-loop convection against open-drum tradition→ NighthawkBellwether Series 2 vs Loring S7 NighthawkPlug-in electric against gas convection at 7 kgSplitStronghold S7 Pro vs Aillio Bullet R1 V2Ceramic electric lab roasters with opposite control philosophiesSplitRoest S100 vs Ikawa Pro 100Sample roasters for profile export vs cupping speed→ 1kgGiesen W1A vs Mill City 1kgSample-lab throughput and data export→ SF-1Diedrich IR-2.5 vs San Franciscan SF-1Batch capacity, utilities, and roast-style fit→ IIILoring S35 Kestrel vs Probat P25 IIIConvection recirculation vs conventional drum heat transfer→ KestrelGiesen W15A vs Loring S15 KestrelVariable drum speed vs fixed recirculation — same capacity, different heat physics→ 15kgMill City 15kg vs Diedrich IR-12Production throughput under real utility constraints→ 5Joper BPR 5 vs Probat P05 IIIBatch capacity, utilities, and roast-style fit→ 3kgUS Roaster Corp 3kg vs San Franciscan SF-6Batch capacity, utilities, and roast-style fit→ XStronghold S9 X vs Loring S7 NighthawkElectric install simplicity vs gas throughput ceiling→ 2Bellwether Series 2 vs Giesen W6AElectric install simplicity vs gas throughput ceiling→ 6kgToper TKM-SX 5 vs Mill City 6kgBatch capacity, utilities, and roast-style fit→ V2Aillio Bullet R1 V2 vs Mill City 1kgInduction sample lab vs gas shop roaster at 1 kg→ IR-5Diedrich IR-5 vs Giesen W6ABatch capacity, utilities, and roast-style fit→ SF-25San Franciscan SF-25 vs Probat P25 IIIProduction throughput under real utility constraints→ V3Roest L100 vs Ikawa Pro V3Sample-lab throughput and data export→ SF-25Loring S15 Kestrel vs San Franciscan SF-25Convection recirculation vs conventional drum heat transfer→ W15AMill City 10kg vs Giesen W15ADomestic drum build vs imported Dutch engineeringSplitDiedrich IR-12 vs Probat P12 IIIAmerican IR drum vs German cast-iron at 12 kg→ S100Stronghold S7 Pro vs Roest S100Korean ceramic automation vs Swiss sample precision→ RoasterBellwether Shop Roaster vs Diedrich IR-2.5Electric install simplicity vs gas throughput ceiling