Grain Moisture Blending & Average Wet & Dry
Blends wheat
Enter the weight and moisture of a wet parcel and a dry parcel to get the blended moisture and total weight— a quick way to reach a safe storage moisture without re-drying everything.
Blend two grain lots
Next: aim to blend down to your crop's safe storage moisture; if 15.6% is still too high, add more dry grain or dry the wet lot before mixing.
Moisture blends by mass, not by volume — a small high-moisture pocket can re-wet the whole lot and trigger mould, so mix thoroughly and re-test.
Grain blending — key facts
- Blended moisture
- weighted by weight
- Total weight
- wet + dry parcels
- Result range
- between the two values
- Heavier parcel
- pulls the average
- Cereal safe
- ≈ 13–14% storage
- Must do
- mix thoroughly
- Then
- monitor for hot spots
- Privacy
- Runs in your browser; nothing uploaded
Reach a safe moisture without firing up the dryer
When one parcel of grain comes in a little wet, you do not always have to dry it. If you have a drier lot on hand, blending the two averages the moisture — weighted by the weight of each parcel — and can land the combined lot at a safe storage moisture for free. A small wet batch mixed into a large dry one barely moves the average, while equal lots meet in the middle.
This tool gives the blended moisture and total weight from your wet and dry parcels, so you can tune the proportions to hit a safe target before you mix. The catch is the mixing itself: blend thoroughly so no damp pockets survive, then monitor stored grain for heating. Pair it with the Safe Storage Moisture, Moisture Shrinkage and Moisture Basis tools for the full post-harvest picture.
Skip re-drying
Blend to a safe moisture with no extra fuel.
Tune the mix
Adjust proportions to hit your storage target.
Know the total
Combined weight of the blended lot at a glance.
Store with care
Mix thoroughly and watch for hot spots.
Frequently Asked Questions
What is grain moisture blending?+
Blending mixes a parcel of wetter grain with a parcel of drier grain so the combined lot sits at an average moisture between the two. It is a quick way to bring a slightly wet batch down to a safe storage moisture without having to run the whole lot through a dryer again.
How is the blended moisture calculated?+
It is a weighted average by weight: blended moisture = (wet weight × wet moisture + dry weight × dry moisture) ÷ total weight. The heavier parcel pulls the result toward its own moisture, so a small wet lot blended into a large dry lot barely shifts the average.
Why blend instead of re-drying?+
Re-drying uses fuel, time and handling, and over-drying can crack grain and cost you saleable weight. If you have a dry lot on hand, blending a modest wet parcel into it reaches a safe average moisture almost for free — no extra drying energy, just thorough mixing.
Is blended grain really safe to store?+
Only if it is mixed thoroughly and monitored. The average moisture can be safe while pockets of the wet grain remain damp enough to heat or mould. Blend evenly, store at the safe target, and check temperature and condition for the first weeks to catch any hot spots early.
What is a safe storage moisture?+
It depends on the grain and how long you store it — commonly around 13–14% for cereals like wheat and maize for medium-term storage, lower for long-term or oilseeds. Use the Safe Storage Moisture calculator for your crop, then blend to hit that target.
Can I blend to any target I want?+
You can only reach a moisture between your two parcels' values, and where it lands depends on their weights. To hit a specific target, adjust the proportions — more dry grain pulls the blend lower. The calculator shows the blended result so you can tweak the mix until it meets your target.
Does the mixing have to be thorough?+
Yes — this is the make-or-break step. A weighted average only describes the lot if the two parcels are genuinely intermingled. Layered or poorly mixed grain leaves damp zones that spoil even though the paperwork says the average is safe. Mix with augers, turning or a blending bin.
Does it work for any weight unit?+
Yes — enter both parcels in the same unit, whether kilograms, quintals, tonnes or bags, and the weighted average and total come out in that unit. The maths is unit-neutral as long as the wet and dry weights are measured the same way.
Are the figures precise?+
The arithmetic is exact for the inputs you give. Real safety depends on accurate moisture readings, even mixing and ongoing monitoring. Treat the blended figure as the target to aim for, mix thoroughly, and keep checking stored grain — blending steers the average, it does not guarantee storage on its own.