Swabbed the slicer at 6:42 AM and the ATP meter spit out 128 RLU — over our 100 pass limit — so I tore it down again, re-sanitized to 200 ppm quat, and re-swabbed. Came back at 23 RLU and I still felt judged; do your meters have the same sense of humor, or is it just mine?
After “200 ppm” sanitize, let it air-dry 2 minutes; residual quat can skew ATP — do you warm the meter?
Switch to ‘neutralizing swabs’ for 200 ppm quat; 128 to 23 screams residue. @OP, fixed 10x10 cm area?
mine heckles me before coffee too; at 6:42 AM those slicers are fridge-cold and condensation can spike reads — I keep the swabs in my pocket 10 min and do a quick dry wipe before swabbing, which curbed my ‘128 RLU’ moments. Also check for rail-lube overspray; that stuff can light ATP up. @OP, have you tried warming the swabs first (good tips here: Innovative Diagnostic Solutions for Hygiene & Food Safety | Hygiena)?