jam sugar BrE
gelling sugar AmE

Use three times as much fruit in weight as you do Gelling Sugar.

Gelling sugar cannot be stored as long as normal sugar, because of its content in pectin.

Gelling sugar is used for traditional British recipes for jam, marmalade and preserves with the following formulas:

Gelling sugar is different from preserving sugar, which does not contain pectin and is just sugar with larger crystals to avoid scum.

Preserving sugar differs from gelling sugar, also called jam sugar, because the latter contains pectin while preserving sugar is 100% sugar.

For household use, pectin is an ingredient in gelling sugar (also known as "jam sugar") where it is diluted to the right concentration with sugar and some citric acid to adjust pH.

Gelling sugar or (British) Jam sugar or (US) Jelly sugar or sugar with pectin is a kind of sugar, which is used to produce preserves and which contains pectin as a gelling agent.

Preserving sugar differs from gelling sugar, also called jam sugar, because the latter contains pectin while preserving sugar is 100% sugar.

For household use, pectin is an ingredient in gelling sugar (also known as "jam sugar") where it is diluted to the right concentration with sugar and some citric acid to adjust pH.

As well as the record crops of cherries, plums, strawberries, blackberries, raspberries and apples reported all over the UK this year, sugar supplier Silver Spoon has enjoyed a surge in sales of jam sugar.

Gelling sugar or (British) Jam sugar or (US) Jelly sugar or sugar with pectin is a kind of sugar, which is used to produce preserves and which contains pectin as a gelling agent.

In July, distributor RH Amar said orders for Certo pectin, a gelling agent used for production in jam, were up 19 per cent compared to last year, and Silver Spoon confirmed a surge in sales of jam sugar.

Cherries can be frozen, but best to stone them first (with a cherry pitter from johnlewis.com) or the kernels will flavour the fruit, or jam them pitted and whole (500g fruit to 500g jam sugar) with the juice of two lemons and a little kirsch – delicious eaten spread on toasted brioche.