Frozen broccoli is sold as cut florets in an agreed calibre band with an agreed maximum stalk length. Two variables decide almost everything about the finished article: how the heads were cut, and how the blanch was run. Cutting decides what fraction of the delivered weight is floret head rather than stem, which is the difference between a product that plates well and a product that looks like offcuts. Blanching decides whether the flavour is still clean after eight months in a cold store, because the enzymes that turn brassicas hay-like and sulphurous keep working slowly below zero if they were not properly inactivated. Everything else – colour, free-flowing behaviour, glaze – follows from those two.
Grades, cuts and calibration
Calibre is specified as a band, measured across the widest part of the floret head. The two bands that cover most of the trade are 20 to 40 millimetres and 40 to 60 millimetres, with a tolerance for pieces outside the band stated as a percentage by weight, commonly 10 per cent. Below 20 millimetres the product is sold as cuts or as a mix, and above 60 millimetres it is a catering grade that freezes less evenly. Stalk length is a separate line in the specification and it is where money is quietly lost: a 30 millimetre stalk allowance and a 60 millimetre stalk allowance on the same nominal calibre are not the same product at the same price. Set the maximum, then set a tolerance for pieces that exceed it, and check both on a weighed sample rather than by eye.
Seasonality and availability
Ukrainian broccoli is harvested from June into October, with the heaviest volume in the two shoulder periods either side of the summer heat, because high field temperatures at heading push the crop towards loose, uneven curds. That long window is one of the reasons vegetables carry less single-window risk than soft fruit: a lost fortnight is a gap, not a lost year. Product is drawn from cold store for the remaining months. Contracts placed before the season can be volume-firm with a price mechanism; contracts placed in spring buy whatever is left in store, which is usually the calibre nobody else wanted.
What the buyer checks at intake
- Core temperature taken between cartons on at least three pallets, not on the pallet surface. Anything warmer than minus eighteen degrees Celsius needs the reefer download before the load is accepted.
- Calibre against the agreed band on a weighed sample of at least one kilogram per pallet checked, with the out-of-band fraction recorded as a percentage.
- Stalk length and stalk fraction. Weigh the stems that exceed the agreed maximum and express them as a percentage of sample weight.
- Colour against a retained reference sample. A dull olive tone on part of the lot usually means slow freezing or a temperature excursion, not a cultivar difference.
- Free-flowing behaviour. Clumps and ice bridges mean the product warmed and refroze somewhere in the chain.
- Blanch verification. Run the peroxidase test on the retained sample, and ask for the line record for the production date on the pallet label.
- Extraneous vegetable matter and foreign bodies against the agreed tolerance, with anything hard or sharp treated as a zero tolerance finding.
Where it is used
Food service takes the 20 to 40 millimetre band in ten kilogram cartons, because a smaller floret reheats evenly on a bain-marie and portions predictably. Retail private label mostly takes the same band in printed bags of 400 grams to one kilogram, where appearance through the window and consistent piece size matter more than yield. Baby food and puree applications take cuts and the smaller fractions, since the product is going to be comminuted anyway, and they apply the tightest residue and heavy metal expectations of any application in the category. Ready meal manufacturers buy on drained weight after cooking rather than on frozen weight, which is why the specification should say which basis the price refers to.
Standards and routes
Most volume moves by road in a temperature-controlled reefer through the western Ukrainian crossings into Poland, with onward movement to Germany, the Netherlands and Czechia. Suppliers are normally certified to a GFSI-recognised scheme, most often BRCGS Food Safety or IFS Food, with GLOBALG.A.P. at farm level and EU organic certification on top where the product is organic.
