High Protein Strawberry Gelato

Bright, lean and very cold on the tongue, with ripe fruit aroma arriving late and a clean finish that stops short instead of coating the mouth.

It goes in softer than a plain milk gelato and colder on the tongue, because the sugar blend runs a PAC of 286.83 and the scoop never sets hard. The fruit comes second, sharp then ripe, and it comes through whole because the acid never meets a hot base. Then there is the part people notice without naming it: the body holds its shape while still eating lean, since fat sits at 5.11 percent and the carrying is done by 15 g of whey protein and 33 g of milk powder. The finish is short and clean, cut by 8 g of lemon juice against 250 g of strawberry.

The fruit dose is 250 g per kilo, the classic figure for a milk based fruit gelato. That is enough strawberry to lead the flavour and little enough that the acid does not wreck the dairy protein around it. Strawberry sits near pH 3.3 and casein flocculates below pH 4.6, so the entire method here is organised around keeping those two apart until the base is cold.

Fat lands at 5.11% against a 4 to 8.5 window, deliberately low: less fat coating the palate means the strawberry reads sharper. The 8 g of lemon juice per kilo finishes that job, lifting an aroma that gets diluted by milk and holding the colour in place.

Ingredients

Makes 1000 g of finished base.

Method

Cold base, raw strawberry puree stirred in at the end

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 Milk Gelato with Fruit.

PAC finishes at 286.83 in a 220 to 300 window, up near the top, and that is a direct consequence of 250 g of fruit plus 45 g of dextrose per kilo, both of which depress the freezing point harder than sucrose does. More of the water stays unfrozen at freezer temperature, so the tub stays scoopable instead of setting into a block. Total solids sit at 34.49% against a 33 to 42 range, close to the floor, because strawberry is mostly water, and that is also why water reads 65.51% against a 67 ceiling. Protein at 4.11% is the number the whole formula is built around, and 15 g of whey per kilo is simply the most that fits under the 4.5% cap once milk protein, non-fat dry milk and cream are counted. Lactose ends at 7.13% of the water phase, well clear of the sandiness threshold.

If it goes wrong

Allergens: milk

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