A snake or lizard keeper who has ever had to source live prey in a hurry knows why frozen feeder mice exist, and Monkfield supply theirs already graded by size rather than leaving a keeper to guess. This pack is the "Large Pinks" stage, at 2-3g each, one step up from a small pink and below the mouse fluffs and crawlers stages in Monkfield's range.

The analysis for mice at this stage shows moisture at 67%, protein at 21% and fat content at 9%. Monkfield raise their mice on a rodent farm in Europe, subject to regular health checks, and describe them as humanely euthanised according to government-dictated guidelines before being graded, bagged and blast frozen. Monkfield Nutrition is licensed by DEFRA for distribution to the trade and subject to regular inspections.

• "Large Pinks" stage, 2-3g each
• Moisture 67%, protein 21%, fat content 9%
• Raised on a rodent farm in Europe with regular health checks
• Humanely euthanised, blast frozen
• Monkfield Nutrition is DEFRA-licensed for trade distribution
• 25-pack

On defrosting. Monkfield's own instruction is to defrost frozen food naturally at room temperature, away from food preparation surfaces, and never in warm water or a microwave — with thorough handwashing before and after handling. That guidance is worth following exactly as given rather than a quicker shortcut.

Who it's for: keepers of snakes and other reptiles feeding at the Large Pinks stage who want a DEFRA-licensed, graded and frozen feeder rather than sourcing live prey.