The Benefits of Multiple Moisture Readings in Hay Production

Posted by Tom Laurenzi on Jun 10, 2014 9:53:00 AM

It can really pay off to measure moisture twice before you bale your hay.Last week, we talked about how moisture meters help farmers take measurements of moisture in hay. In that blog post, we mentioned that it was important to take multiple measurements when measuring hay.

Why would you want to take more than one measurement of the moisture content of hay? Because, as you may know, hay is a loosely-packed material before it is baled. Even tightly baled, hay is not a singular, dense object. After all, hay is typically meant to be fed to livestock, and they can’t eat a solid brick.

Because a pile or bale of hay is not a solid, singular object, there can be any number of pockets of empty space inside of it, just like there might be areas within the bale that are more densely packed. While baled hay may have fewer empty spaces compared to a hay pile, the chances of hitting one and having it throw off your readings are still high enough to warrant at least a second reading.

Benefits of Taking Multiple Readings in Hay

The first benefit of taking multiple readings, not just in hay but in any situation that involves taking a moisture reading, is that more readings mean that your hay moisture content data is more reliable. A single high or low moisture reading could be a fluke; six readings that agree with one another is proof of whether or not the hay’s moisture content is within acceptable levels.

Other benefits of taking multiple readings in hay include:

  • The ability to take an average of your readings.
  • Being more likely to find a hidden moisture pocket.
  • Having proof that your hay was checked thoroughly if you record your reading results (or use a meter that can store readings).
  • Getting a more complete picture of the moisture content of your hay.
  • Avoiding putting spoiled hay with healthy hay bales.
  • Improved safety and health for animals that feed on hay.

When you average a large number of measurements, you are getting a much more reliable assessment of the condition of your hay than you could with any single measurement. Not only that, but by taking multiple reading measurements at different depths and from different angles, you are more likely to find a hidden moisture pocket than you would be with a single reading.

Damp hay can be hazardous in several ways.By finding hidden pockets of moisture that would be missed when relying on a single reading, you can identify problematic hay stacks and bales that should not be placed in storage. If one hay bale becomes contaminated with mold because of excessive moisture, that mold can spread spores to other, nearby hay bales in storage, even if they do not have excessive moisture themselves.

Moldy hay poses a health risk to the farm animals that are meant to feed on it. Not only that, stored hay that has excessive moisture may build up heat and actually spontaneously combust. Spontaneous combustion might seem like an unlikely problem to those not experienced with combustible dusts, but improper hay storage has resulted in more than one case of sudden, violent explosions. Hay-related fires have become such a problem that FEMA has released a handbook warning firefighters of the potential dangers in dealing with hay silo fires.

If ever you are in doubt as to whether you have acceptable moisture levels in your hay, take another measurement to be sure. You won’t regret the handful of seconds that it will take you to be certain. 

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Topics: moisture meters hay