Bruised herbs turn black. They release bitter liquid and clump. The problem is almost always technique.
The two-step fix
Step 1 — dry everything first.
Wet herbs stick and tear. Pat them dry. If you washed them, shake or spin off every drop before the knife touches them.
Step 2 — rock, don't press.
Most people chop by pressing the blade straight down. That crushes cell walls. Instead:
- Keep the tip of the knife planted on the board.
- Rock the heel down in short, controlled arcs.
- Let the blade do the work — don't lean into it.
One pass. Gather. One more pass. Stop when they're the size you want.
Basil is the worst offender
Thin cell walls, high water content. For chiffonade: stack the leaves, roll tight, slice across in one clean stroke. Never saw back and forth.
For a rough chop: use the rocking method, but work fast. The longer the blade sits on the leaves, the more pressure damages them.
The knife matters
A dull knife bruises everything. If your herbs blacken within 10 seconds of chopping, sharpen before you blame your grip.
Run your knife across a honing steel before each session. It takes 10 seconds and realigns the edge.
Two rules
- Dry herbs before chopping. Always.
- Rock, don't press. Tip planted; only the heel moves.
No special tools. No special board. Just those two habits.
