What is a Jar Test?
A jar test is a small trial where you mix the planned combination of products in a glass or plastic jar filled with water.
This helps you see if the products mix well or form clumps, layers, or sludge.
Why is it important?
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Avoids spray tank clogging
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Prevents crop damage
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Saves time, effort, and cost
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Confirms product compatibility
How to Perform a Jar Test (Step-by-Step)
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Take a clean, transparent jar (1-liter size).
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Fill it halfway with the same water you will use for spraying.
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Add the products one by one in the correct tank mixing order (W.A.L.E.S.T.)
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Stir or shake gently after each addition.
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Let it sit for 15–30 minutes.
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Observe for any signs of separation, thickening, clumping, or precipitation.
What to Look For
Clear, even mixture – Safe to mix in a spray tank
Layering, flakes, or thick paste – Do not mix; products are incompatible