Green peas are the most technically demanding vegetable in the frozen range, and the one where the specification most often measures the wrong thing. Buyers write a sieve size and assume they have specified quality. They have not. Sieve size measures diameter; it says nothing about maturity, and maturity is what decides whether the pea is sweet and tender or starchy and mealy. A large pea harvested at the right maturity eats better than a small pea harvested three days late. The two measurements that actually track maturity are the tenderometer reading taken in the field or at intake, and the alcohol-insoluble solids figure measured in the laboratory. Both belong in the specification, alongside the sieve grade rather than instead of it.
Grades, cuts and calibration
Sieve grading is trade practice and the bands are widely recognised: extra fine up to about 8.2 millimetres, very fine 8.2 to 8.75, fine 8.75 to 9.3, medium 9.3 to 10.2, and large above 10.2 millimetres. Retail premium lines buy extra fine and very fine; food service and industrial blends buy fine and medium, where the price per kilogram is materially lower and the eating quality is close if the maturity was right. Maturity is expressed as a tenderometer reading, with lower numbers meaning a more tender, less mature pea, and as alcohol-insoluble solids, where a lower percentage means less starch. A specification that names a sieve band, a maximum tenderometer reading and a maximum alcohol-insoluble solids percentage has described the product. One that names only the sieve band has described its diameter.
Seasonality and availability
The Ukrainian pea harvest is short and unforgiving: late May into July, with individual fields reaching optimum maturity within a window of a day or two. Peas convert sugar to starch quickly after cutting, so plants schedule harvest against freezing capacity rather than the other way round, and run continuously through the peak. The industry benchmark that matters is the interval between vining and the freezing tunnel, counted in hours rather than days. Everything supplied after July comes from cold store, which means the entire year’s quality is decided in six weeks and a buyer who wants a specific grade at a specific tenderometer level has to contract before the season starts.
What the buyer checks at intake
- Core temperature between cartons on several pallets, with the reefer download read before acceptance if any reading is warm.
- Sieve grade on a weighed sample, with the fraction outside the agreed band recorded as a percentage.
- Maturity indicators. Ask for the tenderometer record for the production lot and, where the specification requires it, the alcohol-insoluble solids result from the plant laboratory.
- Colour uniformity. Yellowed or bleached peas indicate over-maturity or an over-run blanch; a scattering of pale peas is normal, a consistent pale cast is not.
- Blemished, split and skinned peas against the agreed defect tolerance, counted on a weighed sample.
- Extraneous vegetable matter, principally vine and pod fragments, against the agreed tolerance.
- Free-flowing behaviour, free ice, and clumping as evidence of a temperature excursion.
- Eating quality on a cooked retained sample. Starchiness that the numbers did not predict is worth investigating before the next order.
Where it is used
Retail private label is the largest outlet, buying extra fine and very fine in printed bags of 400 grams to one kilogram, where sweetness and colour drive repeat purchase. Food service buys fine and medium in ten kilogram cartons for volume catering. Blends take fine and medium grades, where the pea is one component among four or five and the blend ratio tolerance matters more than the individual sieve distribution. Baby food takes extra fine with the tightest residue and heavy metal expectations in the category, and often specifies a maximum alcohol-insoluble solids figure well below the commercial norm because texture after pureeing is unforgiving.
Standards and routes
Road reefer into Poland and onward across the Union is the standard movement, with Germany, Poland and the Netherlands the largest destinations. Plants supplying retail private label are normally certified to BRCGS Food Safety or IFS Food, with GLOBALG.A.P. at farm level, and buyers in the infant segment usually add their own residue monitoring requirements on top.
