Strawberry Sorbet

Light on the tongue and quick to melt, it lands bright and sharp almost at once, keeps a lemon edge at the back and clears without leaving a film.

There is no fat in this to slow anything down, so the fruit arrives almost at once, bright and sharp, then clears fast and leaves the mouth clean instead of filmed. The body is light, the melt is quick, and the acidity sits at the back where it keeps the sweetness in check. Building that takes work, because the fruit is about 91 percent water: 520 g per kilo bring colour, aroma and acid and almost no structure, so four sugar lines and a stabiliser have to carry the texture on their own. The 15 g of lemon does a second job, holding the red from turning orange.

The 15 g of lemon juice is doing a job most recipes never explain. It pulls the mix to roughly pH 3.3, and pelargonidin-3-glucoside, the pigment that makes strawberry red, is only stable in its flavylium form at that acidity. Skip the acid and the sorbet drifts orange in a few days, even sitting frozen.

PAC lands at 323.81, which is effectively the centre of the 275 to 375 band, and the 65 g of dextrose is most of the reason it sits there rather than at the stiff end. Protein closes at 0.37 percent against the 0.5 ceiling a sorbetto has to respect, and fat at 0.16 percent, so there is nothing here to soften the ice except sugar architecture.

Ingredients

Makes 1000 g of finished base.

Method

Syrup cooked separately, raw puree folded in cold, three tray passes

1. 1Whisk every dry ingredient together first: sugars, milk powder, stabiliser and salt. Dry-blending them stops the stabiliser clumping when it meets liquid.
2. 2Warm the liquids to 40 C (104 F), then rain the dry mix in while whisking hard.
3. 3Heat to 82 C (180 F) and hold for 2 minutes so the stabiliser hydrates.
4. 4Chill in an ice bath to under 5 C (41 F) within 2 hours. Slow cooling is where bacteria and coarse crystals both start.
5. 5Age 6 to 12 hours in the fridge under 5 C (41 F). This is when the stabiliser and the milk protein take up water.
6. 6Fold the fruit in cold, after ageing. Heating it costs you the fresh aroma and nothing is gained.
7. 7Freeze in a shallow metal pan 2 to 3 cm deep, breaking the crystals with a fork every 30 to 40 minutes, 4 to 6 times.
8. 8Freeze firm, then temper 10 to 15 minutes in the fridge before scooping.

The balance

All six against the professional range for Sorbetto.

Two numbers set the shape of this sheet. Sugars at 28.69 percent against a 23 to 32 band are high for a fruit sorbet, and they have to be, because 520 g of a fruit that is 91 percent water contributes almost no solids of its own. PAC at 323.81 against 275 to 375 is the second: it is what makes a 68.75 percent water mix, in a 65 to 73 band, still scoop at home freezer temperature instead of setting into a block. Around those, solids read 31.25 against 27 to 35, POD 209.94 against 175 to 240, fat 0.16 against a 2 ceiling and protein 0.37 against a 0.5 ceiling. There is no MSNF at all, which is why lactose sits at zero and the sandiness check passes by definition.

If it goes wrong

Want to change an ingredient and watch the numbers move? Open the free balancer