1 September 2026
How to Reduce Bruising When Grading Apples at Scale
Bruised apples sell for less. If your grading line is bruising fruit, you lose money on every damaged apple. Most bruising comes from a few common causes, and most of them are easy to fix.
Where bruising usually starts
Apples get bruised when they hit hard surfaces, fall too far, or get squeezed between rollers set too tight. A lot of bruising happens before the apple even reaches the grading machine, during unloading or on the first conveyor.
What helps at the grading stage
Padded rollers help a lot. They give a little instead of hitting the fruit hard. Roller spacing matters too. If it is set too tight for your apple size, fruit gets squeezed as it moves through.
Drop height matters as well. Every time an apple falls from one section to the next, that is a chance for a bruise. Keep drops short, and use a soft landing surface where you can.
Washing before grading also helps
A gentle wash before grading removes field debris and gets any soft or damaged fruit out early, before it goes through the rest of the line. Ours uses a water flume and spray instead of scrubbing, so there is less contact damage at that stage too.
Line speed matters too
Running the line faster than it is built for causes more bruising, even with good equipment. If you are pushing volume up, check that your roller speed and drop points are still matched to that speed. What worked fine at a slower pace can start bruising fruit once you speed it up.
Training the crew that handles it
Even a mostly automatic line needs a few points of human handling, at unloading and at packing. A crew that understands how easily a bruise happens tends to grip and set down fruit more carefully than one that has never been told why it matters. It costs nothing to explain, and it helps.
Simple checks worth doing
Walk your line once a season and check roller spacing against your actual fruit size, not last year's. Check for any drop point taller than a hand's width. Small fixes like these cut down bruising more than people expect.
