Cheddar Curds Recipe

Prepare milk

Pour 4 cups whole milk and 1 cup heavy cream into a large stainless steel pot. Slowly warm the milk over low–medium heat, stirring occasionally to prevent scorching, until it reaches 88°F (31°C). Use a calibrated thermometer for accuracy.

Add culture

Remove the pot from direct heat and sprinkle 1 tsp mesophilic starter culture evenly over the surface. Let sit 2 minutes to rehydrate, then gently stir the culture into the milk using an up-and-down motion for about 1 minute to distribute evenly. Hold the milk at 88°F (31°C) for 30–45 minutes to allow the culture to acidify the milk.

Add calcium chloride and rennet

If using pasteurized (but not ultra-pasteurized) milk, dilute 1/2 tsp liquid calcium chloride in 2 tbsp cool, non-chlorinated water and stir into the milk. Dilute 1/4 tsp liquid rennet in 2 tbsp cool water and stir it in gently for 30 seconds. Stop stirring and allow the milk to set undisturbed at 88°F (31°C) for 40–60 minutes, until a clean break forms when you insert a knife and lift gently.

Cut the curd

Once the curd has set, cut it into 1/2-inch (1.25 cm) cubes using a long knife or curd cutter. Make vertical cuts across the pot, then rotate and make perpendicular cuts to create even cubes. Let the cut curds rest 5 minutes.

Cook the curds

Gradually heat the curds over 30 minutes from 88°F to 102°F (31°C to 39°C). Increase temperature in 2–3°F increments every 5 minutes, gently stirring the curds with a slotted spoon to prevent matting. This will expel whey and firm the curds. Maintain slow, gentle motion—do not break curds aggressively.

Drain whey

When curds are firm and have shrunk slightly (after reaching 102°F), turn off the heat and let them settle 5 minutes. Pour the curds and whey into a colander lined with cheesecloth set over a bowl or sink to drain. Reserve whey if desired. Let drain for 5–10 minutes, gently stirring to promote even drainage.

Salt and cool

Transfer drained curds to a clean bowl. Sprinkle 1 tablespoon of the non-iodized salt over the curds and gently toss to distribute. Taste and toss again if needed to reach desired salt level. Spread curds on a tray or in a shallow container to cool to room temperature (about 20–30 minutes). At this point they are cheddar curds—slightly springy and with a mild tang.

Optional: Firm and age (for squeaky texture)

If you want firmer, more cheddar-like curds, place salted curds into a suitable mold or small container and press lightly (5–10 lb pressure) for 1–2 hours to expel more whey, then air-dry at cool room temperature for 1–2 days, turning occasionally. For aged flavor, vacuum-seal and age in refrigerator or cheese cave at 50–55°F (10–13°C) for 1–3 months—note that traditional cheddar curds are usually eaten fresh.

Optional: Refresh or melt curds for squeak

If the curds have lost some 'squeak' from cooling, bring 4 cups of water to 120–140°F (49–60°C). Briefly (15–30 seconds) dip handfuls of curds into the warm water using a slotted spoon, then immediately transfer to an ice bath or tray to cool. This briefly anneals the curd surface and can restore a fresh squeak and desirable texture. Do not immerse for long or curds will lose their shape.