Market

Wholesale onions: a Żuławy supplier for packers and processors

Wholesale onions from Żuławy: size, commercial grades, big bags and sacks, GlobalG.A.P. and GRASP certificates and availability all year round. See how we work B2B.

Agro-Malz TeamJune 19, 20267 min read
Bagged onions ready for wholesale dispatch

We are a farm in Żuławy and a supplier of onions to packing companies and processing plants. We grow about 250 hectares of onions, we have our own store for about 13,000 tonnes and an automated packing line. That lets us supply onions at a consistent quality and all year round, not just during the harvest season.

This post is for buyers: we explain what size and commercial grade mean, what we pack onions in and what cooperation looks like. No fluff: the specifics a B2B buyer is looking for.

What onion size is and what we offer

Size simply means the diameter of the onion in millimetres. Buyers order specific ranges, because the use depends on the size: one goes to retail chains, another to peeling, and yet another to processing.

SizeTypical use
40-60 mmsmaller onions, retail sacks
50-70 mmthe most sought-after commercial range
60-80 mmlarge onions, peeling and food service
80+ mmvery large size, processing

We grade and sort onions to the buyer's needs. You will find the full offer of yellow and red onions on the onion offer and red onion pages.

Commercial grades of onions, what class I means

Onions on the market are divided into commercial grades according to a quality standard. In practice two matter: class I and class II.

GradeWhat it means
Class Ifirm and compact onions, with no shooting into foliage, practically no roots, even, with the foliage trimmed
Class IIlarger appearance defects allowed, while retaining usable qualities

We aim for class I quality, because that is what large buyers expect. Every batch is selected for firmness, colour and a dry skin. We describe where this quality comes from in our post about growing onions in Żuławy.

What we pack onions in

We match the packaging format to the buyer and the logistics. Onions need breathable packaging, which is why we do not use plastic film.

PackagingFor whom
Looseprocessing, large packers
Big bagwholesale transport, packers
Net bags (e.g. 25, 15, 10 kg)distribution and retail

We grade and pack on an automated line with a palletiser, which delivers consistent quality and fast turnaround on larger orders. We describe the equipment in the machinery section, and packing and storage in our guide to onion storage.

Onions for processing, peeling and freezing

Different uses have different requirements. For peeling and food service, a large, even size works well, for example the Hysinger F1 variety. For processing and freezing, firm yellow Rijnsburger-type varieties such as Hybelle F1 and Hysinger F1 are a good fit. Red onion, namely Redtide F1, Redmate, Aurelion and Tannat, we recommend where colour matters: for salads, garnish and retail sales. We also have onion grown from sets, which comes off the field as early as the start of summer.

If you need onions for a specific process, tell us where they are headed and we will choose the variety and size.

The quality the market demands

Large buyers do not buy "blind". They demand documented quality, and we have it. We run the farm in line with the GlobalG.A.P., GRASP, FSA Gold and GMP+ certificates and the principles of Integrated Plant Production.

  • GlobalG.A.P. is a standard of good agricultural practice, often a condition of cooperation set by retail chains and processors. It guarantees food safety and traceability.
  • GRASP is an assessment of working conditions, an add-on to GlobalG.A.P.
  • FSA (Farm Sustainability Assessment) is an assessment of sustainable farm management. We hold the highest level: Gold.
  • GMP+ is a safety and quality standard in the supply chain.
  • Integrated Plant Production is the controlled, careful use of plant protection products.

On top of that we test every batch for pesticide residues, heavy metals and substances hazardous to health. For the buyer that means peace of mind and compliance with their own customers' requirements.

For many chains and processors, GlobalG.A.P. is not an add-on but a condition of entry. We meet that condition from the field through to the store.

Availability all year round

A one-off delivery is not enough. What counts is continuity. We harvest onion grown from sets as early as the start of summer, then the spring-sown onions come in, and thanks to our own store for around 13,000 tonnes we do not sell the whole crop right after harvest. The result is that we supply onions all year round, at a steady quality. We explain how this works on the technical side in our guide to onion storage.

Why onions from Żuławy

Origin matters. Żuławy is a region of fertile alluvial soils, on which onions grow evenly and turn out firm, well-covered bulbs. Add to that our location in the Pomeranian region, near the Tricity, close to the ports and main routes, which eases the logistics of deliveries to northern Poland and for export.

In short: you get onions from a specific place and a specific farm, with a history and responsibility for quality, rather than anonymous produce off the exchange. We show how these onions are made in our post about growing in Żuławy.

Who we supply

Our vegetables reach market leaders such as Onix, Farm Frites and FreshPol, partners that supply the largest retail chains and processing plants in Poland and Europe. We also work on potatoes for processing, including the Innovator variety, which you will find in the potato offer.

For us this is proof that the quality and consistency of our deliveries are at the level large buyers expect.

Transport and delivery logistics

It is not just the produce that counts, but whether it arrives on time and in good condition. We prepare the onions on pallets, stacked by a palletiser, which speeds up loading and protects the packaging in transit. We set the delivery format and batch size around the buyer's logistics.

Onions for export

Polish onions hold a strong position in Europe, and markets such as Germany and the Netherlands regularly buy raw material from Poland. Our GlobalG.A.P. and GRASP certificates and consistent batch quality are exactly what foreign buyers expect. If you are interested in export delivery, get in touch and we will agree the terms and documentation.

How to order onions wholesale

Cooperation starts with a conversation about your needs: what size, what packaging format, what quantity and what timing. On request we send a free sample, so you can assess the produce before you decide.

Write or call through our contact page and we will work out the details. We calculate the price based on current market prices and the parameters of the order.


Need onions in wholesale, at a consistent quality and with certificates? Get in touch through our contact page or see how we grow our onions.

Frequently asked questions about wholesale onions

It is the diameter of the onion in millimetres. The most sought-after range in the trade is 50-70 mm, but we offer different sizes for specific uses.

The ones that matter in the trade are class I and class II. We aim for class I quality: firm, compact and even onions.

Loose, in big bags and in net bags, for example 25, 15 and 10 kg. We match the format to the buyer.

Yes, on request we send a free sample. Just write or call.

Yes. Onion grown from sets comes off the field as early as the start of summer, then the spring-sown onions come in, and our store for around 13,000 tonnes lets us supply produce all year round, at a steady quality.

For processing and freezing, firm yellow varieties such as Hybelle F1 and Hysinger F1 work best. Red onion is more of a supplement to the range, for products where colour matters.

Big bags come in various sizes, from a few hundred kilograms up to larger units. We match the packaging size to the logistics and the buyer's needs.

Yes. We have GlobalG.A.P. and GRASP certificates and consistent batch quality, which is what buyers in markets such as Germany and the Netherlands expect. We agree the terms individually.

Let's talk about delivery

Tell us what you need and by when. We reply with a straight answer, usually the same day.

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Author: Agro-Malz Team

Published: June 19, 2026

Updated: August 27, 2026

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