Quantas Cebolas Da 1kg

How to Actually Figure Out How Many Onions You Need Per Kilogram

When a recipe calls for a kilogram of onions, you need roughly five to seven medium bulbs, but that range is where the real problem starts. The size of an onion depends on variety, season, soil, and how long it has been stored. A Vidalia onion out of season in January will weigh significantly more than a small red onion harvested in July, and using a fixed number without accounting for that will throw off your dish.

Quantas cebolas da 1kg: O guia prático

In practice, I calculate based on diameter rather than counting. I roll them in my hand and sort by feel. Large onions above 8 centimeters across average around 250 to 350 grams each, which means two or three will get you a kilogram. Medium onions in the 6 to 8 centimeter range hit around 150 to 200 grams, giving you five to seven per kilo. Small onions below 6 centimeters can be as light as 80 to 120 grams, pushing the count to nine or ten per kilogram. The variation is enough that guessing by eye is unreliable if precision matters. I ran into this problem last spring when I was scaling a recipe for a catered event. The original yielded four portions and called for 400 grams of onions. I figured two medium onions per person and bought about eight onions total. When they arrived, they were storage onions from the previous harvest, dense and large, each weighing nearly 300 grams. I ended up with over a kilogram instead of 400 grams. I had to adjust the other ingredients proportionally, which meant recalculating the entire batch on the fly. After that, I started weighing my onions before committing to any scaled recipe instead of trusting the count.

Here is the part most home cooks miss. Onions lose water as they age in storage, which means a kilogram of old onions will have less usable flesh than a kilogram of fresh ones. The outer layers dry out and get trimmed away, so you are paying for weight that disappears during prep. I always account for about a 10 to 15 percent waste margin when a recipe depends on a precise onion weight. That means buying closer to 1.1 or 1.2 kilograms if the recipe demands exactly one kilo of prepared onion, depending on how dry the stock looks at the market. Another thing worth noting is that different recipes treat onion weight differently. A base like a sofrito or a French mirepoix relies on onion as a structural flavor component, so getting the weight right matters. In a soup where onions are one voice among many, being off by half an onion makes negligible difference. I would rather be imprecise with onion counts in a chili than in a bisque or a delicate sauce where onion sweetness balances acidity.

If you do not have a scale, you can approximate by volume after chopping. One medium diced onion fills roughly one cup. Two cups of diced onion is close to 300 grams. That still carries error because chop size affects packing density, but it is faster than sorting by diameter when you are already mid-prep. I use the volume method when I am cooking for one and do not want to set up a scale, and I switch to weighing when I am making something that feeds six or more. The numbers I give above are averages, not rules. Some growing conditions produce unusually dense bulbs, and some varieties like yellow Spanish onions naturally run heavier than a standard Bermuda onion of the same diameter. If you buy from the same supplier every week, you will start noticing the pattern and can calibrate your estimates without needing a scale every time. That said, relying on memory alone will drift over the seasons, and the drift compounds when you scale up.

For most home cooking, aiming for five to seven medium onions per kilogram is a safe starting point. If you need higher accuracy, weigh the batch before chopping and adjust the rest of the recipe accordingly. The difference between five and eight onions in a single serving dish is noticeable, and the difference across a large batch is a whole other problem.