For a small frozen turkey crown, plan roughly 10–12 hours of defrosting per kilogram in the fridge at about 4°C, so many “small” crowns (1.5–2.5 kg) need roughly 15–30 hours to thaw safely.

Safe fridge timings

  • A common guide is about 24 hours per 2 kg of turkey, which works out to around 12 hours per kilogram.
  • Several UK supermarket and producer guides say to allow about 10–12 hours per kilogram in the fridge at 4°C.
  • So, as an example:
    • 1 kg crown: 10–12 hours
    • 1.5 kg crown: 15–18 hours
    • 2 kg crown: 20–24 hours
    • 2.5 kg crown: 25–30 hours

Quick checks for doneness

  • The thickest part of the crown (breast) should feel soft all the way through, with no hard or icy core.
  • If you have a probe thermometer, the thickest part should be above 1°C; if it is still below that, it is not fully defrosted.

If you are short on time

  • A cold‑water bath (turkey in a fully sealed bag, submerged in cold water and changed regularly) can defrost in about 1 hour per kilogram, but the bird must be cooked as soon as it is thawed.
  • Room‑temperature defrosting is not recommended because the outside can warm into the danger zone for bacteria while the inside is still frozen.

Simple rule of thumb

  • For “how long to defrost a small turkey crown” in a normal home fridge: take the weight in kilograms and multiply by 10–12 to get the minimum hours, then round up and start early so it has extra time to fully thaw.

Information gathered from public forums or data available on the internet and portrayed here.