Comment by Sesse__
Given that a report is supposed to tell what you did and then your calculations and conclusions, you'd better include something as dramatic as “we washed the equipment after getting the wrong results and detecting contamination”…
Given that a report is supposed to tell what you did and then your calculations and conclusions, you'd better include something as dramatic as “we washed the equipment after getting the wrong results and detecting contamination”…
If you detect it and think it's relevant, that might be worth a note. But "reset and start over" is something that could reasonably be thought of as outside the scope of the report. You're reporting on the experiment, not logging your entire time in the lab.