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Preserving Raspberries: Jam, Syrup & Juice

7 min read · Season: Summer · June 9, 2026

Preserving Raspberries: Jam, Syrup & Juice

Preserving Raspberries – Summer in a Jar

Raspberries are delicate: they start to get crushed almost as soon as you pick them. The solution: process them right away or freeze them. With the right method, the flavor stays fully intact.

Raspberry Jam

Ingredients (makes about 6 jars of 200 ml):

  • 1 kg raspberries (fresh or thawed)
  • 500 g 2:1 jam sugar (jam-setting sugar)
  • Juice of half a lemon

Steps:

  1. Lightly crush the raspberries in a pot.
  2. Stir in the jam sugar and lemon juice, let sit for 30 min.
  3. Bring to a boil while stirring, boil at a rolling boil for 4 minutes.
  4. Setting test: drop a bit onto a cold plate – if it wrinkles/sets, it's ready.
  5. Fill into jars rinsed with hot water, seal immediately, briefly turn upside down.

Shelf life: 1–2 years; once opened, 3–4 weeks in the fridge.

Variations:

  • With vanilla (scrape a pod and cook it in)
  • With rose petals for a floral note
  • With 50 g raspberry liqueur, for the adults

Raspberry Syrup

Great for spritzers, cocktails, and desserts.

  • 500 g raspberries + 250 ml water → cook until soft, press through a fine cloth
  • Measure the juice, add an equal amount of sugar
  • Bring to a boil until the sugar dissolves, fill hot into bottles
  • Shelf life: 4–6 weeks in the fridge, 1 year frozen

Raspberry Juice (Pasteurized)

  • Juice the raspberries using a juicer or steam juicer
  • Heat the juice to 80 °C (don't boil – this preserves the flavor)
  • Fill into sterilized bottles, seal immediately
  • Shelf life: 1–2 years, stored cool and dark

Freezing – the Simplest Method

  • Don't wash the raspberries (they turn mushy) – just pick them over
  • Pre-freeze on a baking sheet, then transfer to bags
  • Shelf life: 12 months
  • Great for smoothies, yogurt, sauces, and baking
This article comes from the Ernterei app. The journal for people who make things themselves: garden, harvest, pantry, recipes and over 140 how-to articles – free for iPhone and Android.