Condiments
Raspberry jam: the eight-minute recipe
Raspberry is the easiest fruit to gel and the easiest to ruin: it has plenty of pectin and acidity, but its fragrance disappears with the steam after five extra minutes of cooking. Here the juice reduces by itself and the fruit cooks for just eight minutes, with half a lemon and no added gelling agent.
Method
- Allow three hours of maceration, or overnight, before turning on the heat. Do not wash the raspberries if they are clean: they absorb water and fall apart. If you really must, dip them briefly in cold water and let them drain for half an hour on a cloth.
- Mix the raspberries with the sugar and lemon juice in a large bowl, cover and leave for three hours at room temperature or overnight in the refrigerator. Through osmosis, the sugar draws out the juice.
- Strain the released juice into a wide, shallow stainless steel or enamelled pot. No aluminium or copper, they dull the colour of red fruit. Set the fruit aside.
- Boil the juice on its own for 6-8 minutes over high heat, until it becomes syrupy. Here you are removing water without cooking off the aroma.
- In the meantime, sieve half of the raspberries if you want a smoother texture, or leave them all whole. If you have sieved, tie the discarded pulp with the seeds in a tea bag.
- Add the fruit to the syrup, plus the red currants or the bag of pulp, quickly bring back to a boil and cook for 6-8 minutes over high heat. Skim off the foam and stir gently with a wooden spoon. Squeeze the bag over the pot and discard it.
- Do the cold saucer test: half a teaspoon of jam on a saucer kept in the freezer, a minute of cold and then a finger through the middle. If the groove does not close up, turn off the heat immediately, because carrying on improves nothing. If it runs, cook for another three minutes and try again with a fresh saucer.
- Fill the hot jars up to half a centimetre from the rim, wipe the rim with a damp cloth, close immediately and leave to cool upright. Check that each lid is concave and does not click.
Minnelea products for this recipe
The preserves used in this recipe.
Minnelea
Extra Forest Berry Jam – Artisan, Preservative-Free
€8,90
Minnelea
Sweet Awakening Kit – 6 Artisan Jams
€39,00
• Raspberry already has everything it needs to gel on its own: 0,7-1% pectin, a pH between 3,2 and 3,5 and about 85% water compared with 91% in strawberry, so there is little water to evaporate and nothing to add.
• The fruit must not boil for more than eight to ten minutes: raspberry aroma lives in volatile esters that leave the pot with steam, and after ten minutes only sweet and acid remain, the red turns brick-colored and the sugar begins to caramelize. If after eight minutes it has not set, the problem is water, not time: reduce the juice on its own before putting the fruit back in, and that is exactly what this recipe does.
• Three ways to remove the seeds, which are about 5% of the fruit weight: a sieve with mesh under one millimeter (truly seedless, but you lose 25-30% yield and must reweigh the puree to recalculate the sugar), a food mill with the finest disc (much faster, it holds back almost all seeds but not all), or sieve only half the fruit and leave the other half whole.
• Watch the price of sieving: pectin is not in the juicy pulp but in the membranes and placentas around the seeds, so by sieving you throw away roughly half of it and the jam remains softer. It is not a mistake, it is physics.
• The bag trick: put the discarded pulp with the seeds in gauze or in a tea bag, boil it five minutes in the syrup and then squeeze it over the pot. The pectin ends up in the pot, the seeds in the trash.
• For an extra push without gelling sugar: 100-150 g redcurrants per kilo (1-1,3% pectin and invisible on the palate behind raspberry) or one grated tart apple with its skin. Gelling sugar here is unnecessary and usually harmful, because it gives a slightly rubbery consistency and flattens the fruit flavor.
• With frozen raspberries, the order changes, not the recipe: thaw them 4-6 hours in a colander over a bowl in the refrigerator and you will collect 150-250 ml juice per kilo; reduce that juice with the sugar for 8-10 minutes and add the fruit only for another 5-6 minutes. Use the juice of one whole lemon instead of half, or add 150 g currants, because freezing breaks the cell walls and partly degrades the pectin.
• Sugar and storage, calculated on the weight of cleaned fruit (or puree, if sieved): at 60%, that is 600 g per kilo, the consistency is firm and it keeps 12 months closed and one week in the refrigerator once opened; at 50% it is fruitier and better balanced with acidity, 8-10 months and one week; at 40% or less it is decidedly tart and excellent with aged cheeses, but 4-6 months closed and barely a week opened.
• The three-hour or overnight maceration in the refrigerator is not included in the times indicated above.
• Cold-plate test: three small plates in the freezer before starting, half a teaspoon of jam on the frozen plate, one minute in the freezer and then the finger through the middle. If the surface wrinkles and the groove does not close, it is ready; if it runs like syrup, cook another three minutes and not five, because with raspberries every minute counts double. The thermometer is also fine, 104-105 °C, which here often arrives already at the sixth minute. Hot jam always looks more liquid than it will be: the set continues for 24-48 hours after jarring.
• Storage: jars boiled ten minutes or kept a quarter of an hour at 120 °C in the oven, always new lids, hot filling into hot jars. With the classic method, once jars are closed, boil 20-25 minutes in water with a kitchen towel on the bottom and let cool in the water. Every lid must be concave and must not click: if it clicks, that jar goes in the refrigerator and is consumed first. Keep jars in the dark, because light fades red fruit in a few months.
• Allergens: none. Inside there are only raspberries, sugar and lemon, plus currants if you use them.
• Variations: half raspberries and half blackberries for a darker, less acidic jam; one extra tablespoon of lemon juice for a version to pair with aged cheeses.
• Let us say it openly: Minnelea does not produce a raspberry-only jam. Extra Mixed Berry Jam contains raspberries together with the other berries, so it is not raspberry jam and we do not pretend it is; it serves as a point of comparison, to taste alongside yours what short cooking does to red fruit.
A Minnelea recipe built around Extra Mixed Berry Jam: low-temperature vacuum cooking, real fruit picked ripe, short ingredient lists and no added pectin, no preservatives, no colorings.
• The fruit must not boil for more than eight to ten minutes: raspberry aroma lives in volatile esters that leave the pot with steam, and after ten minutes only sweet and acid remain, the red turns brick-colored and the sugar begins to caramelize. If after eight minutes it has not set, the problem is water, not time: reduce the juice on its own before putting the fruit back in, and that is exactly what this recipe does.
• Three ways to remove the seeds, which are about 5% of the fruit weight: a sieve with mesh under one millimeter (truly seedless, but you lose 25-30% yield and must reweigh the puree to recalculate the sugar), a food mill with the finest disc (much faster, it holds back almost all seeds but not all), or sieve only half the fruit and leave the other half whole.
• Watch the price of sieving: pectin is not in the juicy pulp but in the membranes and placentas around the seeds, so by sieving you throw away roughly half of it and the jam remains softer. It is not a mistake, it is physics.
• The bag trick: put the discarded pulp with the seeds in gauze or in a tea bag, boil it five minutes in the syrup and then squeeze it over the pot. The pectin ends up in the pot, the seeds in the trash.
• For an extra push without gelling sugar: 100-150 g redcurrants per kilo (1-1,3% pectin and invisible on the palate behind raspberry) or one grated tart apple with its skin. Gelling sugar here is unnecessary and usually harmful, because it gives a slightly rubbery consistency and flattens the fruit flavor.
• With frozen raspberries, the order changes, not the recipe: thaw them 4-6 hours in a colander over a bowl in the refrigerator and you will collect 150-250 ml juice per kilo; reduce that juice with the sugar for 8-10 minutes and add the fruit only for another 5-6 minutes. Use the juice of one whole lemon instead of half, or add 150 g currants, because freezing breaks the cell walls and partly degrades the pectin.
• Sugar and storage, calculated on the weight of cleaned fruit (or puree, if sieved): at 60%, that is 600 g per kilo, the consistency is firm and it keeps 12 months closed and one week in the refrigerator once opened; at 50% it is fruitier and better balanced with acidity, 8-10 months and one week; at 40% or less it is decidedly tart and excellent with aged cheeses, but 4-6 months closed and barely a week opened.
• The three-hour or overnight maceration in the refrigerator is not included in the times indicated above.
• Cold-plate test: three small plates in the freezer before starting, half a teaspoon of jam on the frozen plate, one minute in the freezer and then the finger through the middle. If the surface wrinkles and the groove does not close, it is ready; if it runs like syrup, cook another three minutes and not five, because with raspberries every minute counts double. The thermometer is also fine, 104-105 °C, which here often arrives already at the sixth minute. Hot jam always looks more liquid than it will be: the set continues for 24-48 hours after jarring.
• Storage: jars boiled ten minutes or kept a quarter of an hour at 120 °C in the oven, always new lids, hot filling into hot jars. With the classic method, once jars are closed, boil 20-25 minutes in water with a kitchen towel on the bottom and let cool in the water. Every lid must be concave and must not click: if it clicks, that jar goes in the refrigerator and is consumed first. Keep jars in the dark, because light fades red fruit in a few months.
• Allergens: none. Inside there are only raspberries, sugar and lemon, plus currants if you use them.
• Variations: half raspberries and half blackberries for a darker, less acidic jam; one extra tablespoon of lemon juice for a version to pair with aged cheeses.
• Let us say it openly: Minnelea does not produce a raspberry-only jam. Extra Mixed Berry Jam contains raspberries together with the other berries, so it is not raspberry jam and we do not pretend it is; it serves as a point of comparison, to taste alongside yours what short cooking does to red fruit.
A Minnelea recipe built around Extra Mixed Berry Jam: low-temperature vacuum cooking, real fruit picked ripe, short ingredient lists and no added pectin, no preservatives, no colorings.