Keep half an avocado from browning
Lemon and cling film pressed flat — the other half stays fresh till tomorrow.
1
Avocado browns when it meets air — like an apple.
2
Brush the cut surface with lemon or lime juice.
3
Press cling film directly onto the flesh with no air bubbles and refrigerate.
4
You can leave the stone in, but it only protects what's underneath it. Acid and no air are what count. It keeps 1–2 days this way.