How to use the online timer
Ten minutes of steaming suits firmer vegetables like carrots, broccoli, and green beans cut into even, bite-sized pieces, though leafy or very soft vegetables cook considerably faster and dense ones like whole potato chunks want longer. Cutting everything roughly the same size matters more than people expect, since a mix of large and small pieces in the same batch means some are done while others are still firm.
Steaming rather than boiling keeps more of the vegetable's colour, texture, and nutrients intact, since the vegetables never actually sit in water where flavour and vitamins can leach out. A simmering pot with a steamer basket set above the waterline, lid on, is all it takes — the vegetables cook in the rising steam rather than being submerged.
The fork test is more reliable than the timer here: a piece should offer a little resistance rather than sliding off the fork or turning to mush, since vegetables cooked past that point lose the bite that makes them worth eating on their own. Vegetables that will finish cooking further in a pan or oven afterwards are better pulled slightly underdone at this stage.
Common questions
Why are some of my vegetables mushy while others are still hard?
Uneven piece sizes cook at different rates. Cut everything roughly the same size before steaming so the whole batch finishes together.
Is steaming really better than boiling?
For colour, texture, and retaining nutrients, generally yes — vegetables never sit submerged in water where flavour and vitamins can leach out.