Boiling time for potatoes depends mainly on their size and whether they are whole or cut into chunks.
- For whole potatoes:
- Small or baby potatoes (about 1 oz or 30g each) take about 15 minutes once the water is boiling.
- Medium potatoes (about 3.9 oz or 110g) take about 25-30 minutes once boiling.
- Large potatoes (about 8 oz or 225g) take about 40 minutes once boiling.
- For cubed potatoes (about 1-inch pieces), it usually takes about 10-12 minutes once the water reaches a boil.
The potatoes are done when they are fork-tender and easily pierced. Boiling should start by placing potatoes in cold water, bringing it to a boil, then reducing to a simmer until done.