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Strawberries Preserved Whole
Simmer for twenty minutes mashed strawberries, adding no sugar. Strain. To each pint of this juice allow a pint of sugar. Heat sugar and add to the syrup when it has been replaced on stove and is at boiling point. Skim and let boil till thick and pour over whole, hulled berries ready in heated glasses; or, pour first the syrup into the glasses, then drop the berries in the scalding syrup (not too many to each glass). When cold cover with brandied paper and set in the sun daily for a month.
This is a "sunshine preserve" — fruit finished in open jars by solar heat rather than by a measured boiling-water process. The glossary below explains the old terms, and why the method itself puts the finished jars outside any current standard for safe home preserving.
- Why it fails: no seal"Brandied paper" is a round of paper soaked in brandy, laid on the surface of the preserve and held on with a second sheet tied or pasted over the rim. It is a mould inhibitor, not a hermetic closure. Nothing here excludes air or the yeasts, moulds and insects that reach the fruit while the jars stand outdoors.
- Why it fails: a month at ambient temperatureSetting covered jars "in the sun daily for a month" holds a wet, sugary, air-exposed food in exactly the range where surface yeasts ferment and moulds establish. Some of the moulds that colonise jam surfaces produce mycotoxins that penetrate below the visible growth, which is why current guidance is to discard mouldy preserves rather than skim them.
- Why it fails: no measured processThe recipe gives no jar sterilisation, no headspace, no processing time and no temperature. Heated glasses and scalding syrup are not a substitute for a timed boiling-water bath; the fruit dropped into the jars is barely heated at all. A current tested recipe for whole-berry strawberry preserves should be used instead.
- "Glasses"Probably period jelly glasses: straight-sided tumblers, commonly around half a pint, closed with paper or a poured wax cap rather than a lid and band. They were not designed to hold a vacuum.
- The 1:1 sugar ratio"To each pint of this juice allow a pint of sugar" is measured by volume, not weight; a pint of granulated sugar is roughly 14 ounces. That much sugar does lower water activity considerably, and it is effectively the main preservative at work here — but it protects the syrup, not the exposed surface.
- What the technique was forThe point of drawing juice from mashed fruit, cooking the syrup separately, and only then adding whole berries is to keep the berries intact and red rather than boiling them to shreds. That reasoning is sound and survives in modern whole-fruit preserve recipes; the finishing method is what does not.
Sun preserves belong to a long tradition of finishing fruit off the fire: the syrup is cooked to thickness on the stove, but the last of the evaporation and the slow plumping of the whole berries happens in glasses set out in the sun — by a window or on a roof, so it is often said — brought in each night against dew. Nineteenth-century American cookbooks recommended it for strawberries and raspberries in particular, on the grounds that prolonged boiling ruined both the colour and the shape of soft summer fruit efore pection was sold in packets and a set could be reached quickly. The brandied paper cap was a common closure of that world, used for jellies and jams alike, and it is a reminder that until the screw-band glass jar became cheap and universal, household preserving is generally thought to have relied on sugar concentration, spirits and a sheet of paper rather than on a sealed, heat-processed container.