I’ve been holding beef trim at 28–30°F for 45 minutes before first pass on a 3/8" plate, and smear drops while particle definition stays tight, but I’m losing about 5–6% throughput. For those tracking this, what temp/hold combo keeps fat smear low without dragging OEE or compromising micro?
From ‘28–30°F for 45 minutes’, drop to about 25 and pre-chill plate/knife to 15°F; watch amps…
We ditched the 45‑min hold and do a quick blast “skin‑chill” instead — surface to about 26–27°F with cores holding about 30–31°F right before the 3/8" first pass; smear stayed clean and we picked up about 3–4% throughput. Small caveat: keep trim dry going in or frost will slow the feed; @OP are you checking surface temp or just core?
Instead of the 45‑min hold, keep cores about 30°F but hit the hopper/throat with CO2 snow and pre‑chill auger/knife so the surface sits about 26°F at the “3/8"” first pass; we clawed back that 5–6% and kept smear down by bumping knife spring pressure and setting zero end‑play. @cclark2002 is right on colder metal, and a quick -10% RPM for the first 30–45 sec helps seat a clean cut before returning to normal. What are your knife-to-plate tension and auger RPM right now?
Try flaking the trim to about 1/2–3/4 inch and run cores 31–32°F; the larger, uniform pieces feed cleaner so you keep definition without the throughput hit — it’s like giving the grinder ‘bite‑sized snacks.’ @carlton_m92’s temp range tracks, but don’t add salt until after the final grind or you’ll invite smear.