I've had a load of milling oats rejected due to them finding low levels of OSR in the sample ( 6 + seeds/100g). Long story short, I need to find a way to either remove it or take a £20 hit on 150 tonnes (£3k). We have a Bryce Baker 'Trip-bat' rotating drum cleaner with a 3mm slot and 4mm hole screens but oats pass through both. A 2mm hole screen would probably plug with oats (and need brushes fitted) and be slow as sin, a 2mm slot would allow 'light' oats to pass through, and we're already short on the contract tonnage. Bushell weight is well within contract spec. Would OSR pass through a 1.5mm screen? Where's the best place to find sheets of punched hole screen (218cm x 117cm)? There isn't any way to integrate a mobile seed dresser with gravity separator into the handling system (would be £10/t) so thats ruled out. Any ideas?