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Oct 27 · 42.22 pre-release: ladders and crowbar break-insOct 23 · First-person mods are not officially supportedOct 21 · The Indie Stone on Java mods: download responsiblySep 28 · Build 42.21 Stable: zombie duplication fixesAug 26 · Security fixes on every branchAug 17 · Servers now handle up to 254 playersJul 29 · Build 42 goes Stable

Box of Cold Packs

Box of Cold Packs is a first aid item in Project Zomboid. It weighs 1.5. Build 42.21 data, November 2026.

01Item

Box of Cold Packs at a glance

Box of Cold Packs icon

First Aid Medical

It weighs 1.5.

Weight1.5
02Item

What it is and how to use it

Medical items treat wounds, pain and illness. The right order matters: clean a wound, treat it, then bandage it, and change dirty bandages.

More: Health and injuries.

03Item

Item ID and variants

Use the item ID in sandbox loot settings, admin tools and mods.

Item IDGame category
Base.ColdpackBoxFirst Aid
04Item

Where it spawns: the loot tables

Box of Cold Packs is on 4 loot tables in the game files. Share is how much of a table's total weight this item takes, before your sandbox loot settings. Each container rolls its table several times, so a bigger share and more rolls both mean you see it more often.

Loot tableWhere that table is usedShareRolls
Safehouse Freezer MidSurvivor safehouse (mid game) (freezer)5.6%4
Safehouse FreezerSurvivor safehouse (early) (freezer)4.6%4
Army Bunker MedicalOld medical (shelves)0.32%4
Army Storage MedicalArmy storage (shelves, military crate)under 0.1%4

On zombies: zombies in these outfits can carry it: Bandit Late, Bandit Mid, Bandit Early, Bandit, Private Militia.

Inside bags and cases: First Aid Kit - Camping.

Town by town: loot locations.

07Item

Quick answers

How much does the Box of Cold Packs weigh in Project Zomboid?

It weighs 1.5 in Build 42.

What is the item ID for Box of Cold Packs?

Base.ColdpackBox.

Stats and item IDs from the Build 42 game data as listed on pzfans.com. Item art is from Project Zomboid.