What size jam jars are best for selling?

The best jam jar size depends on who you sell to and how the jar will sit on the shelf. For most makers, a 190ml to 280ml jar is the everyday retail size (round, hexagonal or square), a 42ml to 110ml jar suits gifts, samples and wedding favours, and a 380ml (1lb) to 720ml jar works for family fills, hampers and buyers who want more in one go. Matching size and shape to the customer keeps pricing simple and stops you stocking shapes that do not move.

At Bottle Company South we supply glass jam jars with twist-off lids in round, hexagonal, square and Italian styles, with lid colour choices so a range can look consistent across sizes.


Factors to consider when choosing jam jar sizes

  • Who is buying: Gift shoppers and hotel breakfast trays often want a small jar. Farm-shop and market customers usually want a manageable retail fill. Families and foodservice may prefer a larger jar that lasts longer between shops.
  • Shape and labelling: Round jars are the classic preserve look and fill efficiently. Hexagonal jars stand out on a crowded shelf and give flat faces that are easy to label. Square and Italian (Elena / Orcio) styles help a premium or gift line look distinct without changing the recipe.
  • Lid and presentation: Twist-off lids must match the jar neck (for example 43mm on many minis, 58mm or 63mm on common retail sizes). Gold, silver, black, white and gingham options help a brand look finished. Order lids with the jars so packing is not held up.
  • Pricing and margin: Smaller jars can support a higher price per ml for gifts and samples. Larger jars sell on value and fewer units per order.
  • Storage and packing: One core retail size plus one small gift size is usually enough to start. Add a larger “family” size once those two are moving steadily.


Popular jam jar sizes from our range

  • 42ml jam jar with 43mm twist-off lid: About 5cm high and 4cm across the base. Ideal for tasting portions, wedding favours, hotel sets and “try before you buy” packs. Presentation boxes are available for multi-jar gift sets.
  • 110ml hexagonal jar with 48mm twist-off lid: A small gift or sample hex that still shows the colour of the preserve clearly.
  • 190ml round jam jar with 63mm twist-off lid: About 7.5cm high and 6.5cm across the base. A workhorse everyday retail size for farm shops, markets and online, with several lid colour options including gingham.
  • 196ml (8oz) hexagonal jam jar with 58mm twist-off lid: About 8.75cm high and 6cm across the base. Same sort of fill as a classic 8oz retail jar, with a hexagonal silhouette that stands out on the shelf.
  • 200ml (8oz) square and 280ml hexagonal / square jars: Mid-retail options when you want a different shelf look without jumping to a full 1lb fill. The 280ml hex is about 9.75cm high and 7cm across the base, with a 63mm lid.
  • 380ml (1lb) jam jar with 63mm twist-off lid: About 12.5cm high and 7cm across the base. The familiar “1lb” family and hamper size; squat and Italian Elena options sit nearby if you want a different profile at a similar capacity.
  • 720ml round jam jar with twist-off lid: About 14.2cm high and 8cm across the base. For larger household fills, bulk preserve lines and makers who sell fewer, higher-fill units. A 750ml (2lb) option is also available when you need that step up.

You do not need every size on day one. Many makers start with 190ml round or 196ml hex for retail, add 42ml for gifts, then bring in 380ml once wholesale or family demand is clear.


Round, hexagonal, square or Italian?

  • Round: Classic preserve look, efficient filling, suits most labels.
  • Hexagonal: Flat faces for labelling, stacks neatly, reads as premium on a busy farm-shop shelf. See also our Journal note on the benefits of hexagonal jam jars if you are deciding between shapes.
  • Square: Distinct shelf presence for branded food jars and gift lines.
  • Italian (Elena / Orcio): Deeper twist-off lids and a European preserve profile in sizes such as 106ml, 212ml, 314ml, 370ml and 500ml for makers who want that look across a range.

Many makers run a core round line for everyday flavours and a hexagonal or Italian line for premium or gift flavours. That split keeps production simple while giving customers a reason to pick up something special.


How to match size to your sales channel

  • Markets and farm shops: Lead with 190ml round or 196–280ml hex. Keep a few 42ml jars for tasting and impulse gifts.
  • Online and hampers: 190–280ml plus 380ml both work; the larger jar can carry a “family” or “sharing” price point. Mini jars suit multi-flavour gift boxes.
  • Wedding favours and hotel breakfast: Stay with 30–42ml (and matching presentation boxes where useful).
  • Delis and foodservice: 380ml to 720ml reduces reordering for kitchen and counter use.
  • Mixed ranges: Keep lid colour consistent across sizes so jam, jelly and marmalade lines look like one brand. If you also pack honey, our honey jar size guide uses the same “match the jar to the buyer” approach.


Conclusion: choose sizes that match how you sell

The jam jars that sell best are the ones matched to your customers: 42ml for gifts and samples, 190–280ml for everyday retail (round, hex or square), and 380–720ml for family and bulk fills. Start with the size you sell most often, keep matching twist-off lids in stock, and step up pack quantities when the first size is moving steadily.


Explore our jam jars

Browse our jam jars for round, hexagonal, square and Italian styles with twist-off lids, or call the team on 0117 986 9667 if you want help matching jar size, shape and lid to your range.