The cutting is to remove the between hearts ie the secondary branches from the buds worn
by the woods of the year. The operation is performed most often mechanically during trimming.
If they are not removed, they will become woody ("sting") and generate extra work at the waist and
fallen from the woods.
Performed manually, it is often performed during manual stripping.
This operation is only intended to increase the aeration of the grapes, their maturity and, by deduction their quality of harvest.
Between hearts are removed on the first 3, 4 or 5 buds, as directed by the leader.