- Location
- North Norfolk
Definitely NOT 200°C, perhaps 200°F. The official method is 105°C. At 200, you will be driving off organic matter, and will show the sample as artificially high moisture.Testing against a known sample or a ring calibrated meter is the only real way.
Not sure how two neighbours testing wildly inaccurate meters would help!?
Or if you've got some really accurate scales, weigh out some grain, put it in the oven at 200c for a day, then weigh it again, the weight difference will enable you to calculate the water content, thus you have your own oven dried, 'known sample', to calibrate against.
Also you should dry to constant weight, so after say 12 hours, weigh the sample, and again in another 3 hours. If no weight loss between the two, then you are there, otherwise do another 3 hours and repeat until constant weight.