How to make sloe gin at home, and what the label means when you buy it

Blackthorn, Prunus spinosa, is the spiny shrub of hedgerows, scrub and wood edges. The Woodland Trust’s profile has it flowering in March and April, white blossom on bare twigs before the leaves come, and the fruit, the sloes, blue-black and about 1cm across. They ripen from late September and are picked through October into early November.

Tradition says wait for the first frost, which splits the skins and softens the fruit. The Woodland Trust’s own recipe says there is no reason to wait: pick when the sloes are ripe and dark, bag them and freeze them overnight, and the freezer does what the frost would have done. It is the method here, because it also saves pricking every sloe with a needle, which is the other way to open the skins.

Be sure of the plant. Blackthorn twigs are dark, with straight side shoots that harden into thorns, and the leaf buds sit along the thorns; on hawthorn, which it is confused with, the flowers and buds come from the same point. Cherry plum is the other lookalike. Wear thick gloves, because the thorns break off under the skin. The Woodland Trust’s foraging guidelines are the rule: never eat a wild plant unless you are certain of its identification, take only what you will use, leave plenty for the birds, do not uproot anything, and pick with the landowner’s permission, which section 13 of the Wildlife and Countryside Act 1981 requires before any wild plant is uprooted.

The ratio is the Woodland Trust’s, published on 24 October 2025: a one litre bottle of gin, 450g of sloes and 225g of caster sugar. A 700ml bottle scales to about 315g of sloes and 160g of sugar. Use a plain London dry at 40% ABV. The sloes and the sugar take over the flavour, so a juniper-led gin of ordinary price is the right bottle, and anything heavily flavoured fights the fruit.

Wash the sloes, seal them in a bag and freeze them overnight. Tip them frozen into a sterilised jar, or back into the empty gin bottles, pour the gin over, and add the sugar straight onto the frozen fruit. Once the sloes have thawed, seal the jar and shake it well.

Then it is waiting. Keep the jar somewhere cool and dark. Shake it every other day for the first week, then once a week for two months, by which time the liquid is dark red. Three months is the sensible minimum before you strain, and it improves beyond that. If you would rather sweeten to taste, hold back a third of the sugar and stir it in, dissolved in a little of the gin, when you strain.

Line a sieve with muslin or a coffee filter, strain the gin into a jug and let it drip rather than squeezing the fruit, which clouds it. Bottle it, cap it and label it with the date. The yield is about 1.3 litres from a litre of gin, give or take the juice the sloes have given up.

The strength is an estimate, because it depends on the gin, the fruit and the sugar. A litre of gin at 40% ABV holds 400ml of alcohol; the sugar and the juice stretch it to about 1.3 litres, so the result lands near 30% ABV, a point or two either way. A homemade bottle is for the maker and is not sold, so the 25% rule below does not apply to it, but you have made something closer to a liqueur than to a gin, and it should be poured as one.

Kept sealed, upright and out of the light, it lasts years; once opened, a year or more, with the fruit and aromatics fading first, which is the keeping rule on our sloe gin page. Do not leave the sloes in the bottle indefinitely: strain, then store.

The gin-soaked sloes are not for eating as they are. The Woodland Trust notes that a raw sloe dries the mouth in seconds, and the soaked fruit is still astringent and still has its stones. Its suggestion is to use them as a plummy flavouring, steeped a second time in vodka or whisky, or simmered into a jelly or a syrup. Otherwise, compost them.

The law that governs the bottle you buy is retained Regulation (EC) 110/2008, Annex II, as it applies in Great Britain. Category 37 defines sloe gin as a liqueur produced by maceration of sloes in gin, with the possible addition of sloe juice. Its minimum strength is 25% ABV, only natural flavouring substances and preparations may be used, and the sales name may add the word liqueur. Category 32 sets the floor for any liqueur at 15% and 100 grams of sugar a litre; category 20 sets gin at 37.5%.

So a bottle labelled sloe gin at 26% is neither under strength nor a weak gin: a liqueur that has to start from gin and has to taste of sloes, and that cannot use artificial flavouring. What the label will not tell you is how much sugar is in it or how long the fruit steeped. Taste it neat: a good one is tart under the sugar, with the almond note of the stones. What is gin covers the gin categories, and gin styles compared the styles the law does not define.

Neat, cold or over ice, is how most of it goes, and the Woodland Trust lists mulled sloe gin for winter. Long, the house serve is the Sloe Gin & Lemon Tonic, 50ml over ice with 150ml of lemon tonic; the tonic water page explains why a lemon tonic suits a sweet fruit liqueur where an Indian tonic suits a dry gin.

In cocktails it behaves as a liqueur, not a spirit. The Sloe Gin Fizz pairs 45ml of it with 15ml of London dry to put the juniper back. The Blackthorn stirs it with sweet vermouth and orange bitters, a Manhattan shape at liqueur strength. The Charlie Chaplin is equal parts sloe gin, apricot brandy and lime, as the Waldorf-Astoria recorded it. Autumn cocktails sets sloe gin in its season.

The flowering and fruiting dates and the identification notes are from the Woodland Trust’s blackthorn profile, its sloe gin recipe of 24 October 2025, which gives the one litre, 450g and 225g ratio and the freezer method, and its foraging guidelines, each read on 12 October 2026. Categories 32 and 37 of Annex II to retained Regulation (EC) 110/2008 on legislation.gov.uk, in the version as amended to 31 December 2020, checked the same day. The strength of a homemade bottle is our estimate, and is marked as one.