How to Make Sterilized Bandages in Project Zomboid (Build 42.19)
Alcohol · hot water · clean dirty wraps · first-aid effects · Build 42.19
What sterilized bandages actually do
In Build 42.19, sterilized items are not a stronger wrap. Their bandage strength matches the clean non-sterilized version:
| Item | Bandage strength | Disinfects on apply | After use |
|---|---|---|---|
| Bandage | 4.0 | No | Bandage (Dirty) |
| Bandage (Sterilized) | 4.0 | Yes | Bandage (Dirty) |
| Rag | 2.0 | No | Rag (Dirty) |
| Rag (Sterilized) | 2.0 | Yes | Rag (Dirty) |
| Bandage (Dirty) | 0.5 | No | — |
- Tooltips: sterilized bandages “sterilize wounds and aid recovery from infection”; sterilized rags “guard against infection.”
- When applied, sterilized wraps mark that body part as treated with a disinfecting bandage—this is the value of sterilizing, not a higher strength number.
- Dirty bandages are much weaker (strength 0.5). Clean them first if needed; cleaning is a different recipe from sterilizing.
Two craft recipes (compare)
Both recipes are medical crafts you run from inventory (no workbench). Both accept either a clean Bandage or a clean Rag and map to the matching sterilized output. Neither requires First Aid skill or a magazine unlock.
| Route | Recipe name in UI | Fluid cost | Craft time | Extra requirement |
|---|---|---|---|---|
| Alcohol (faster) | Disinfect Rag | 0.1 L Rubbing Alcohol, Vodka, or Whiskey | 40 | Any fluid container holding that alcohol; the fluid is drained (0.1 L) |
| Hot water | Disinfect Bandage | 0.5 L Water | 100 | Container is kept; recipe only works when that container is very hot (tooltip: “Water container needs to be very hot.”) |
Method 1: Alcohol — Disinfect Rag
- Get a clean Bandage or Rag. Dirty wraps must be cleaned first.
- Carry a container that still has at least 0.1 L of Rubbing Alcohol, Vodka, or Whiskey. Common sources: Bottle of Disinfectant (0.5 L capacity, full of Rubbing Alcohol), Bottle of Whiskey (1.0 L), Vodka bottle (1.0 L).
- Open crafting and use the medical / health recipe Disinfect Rag. The bandage or rag becomes the sterilized output; the alcohol fluid is drained by 0.1 L.
- Result: Bandage (Sterilized) or Rag (Sterilized).
- One full Bottle of Disinfectant (0.5 L) can fund about five alcohol sterilizations if nothing else uses the fluid.
- Beer, wine, and other alcohols that are not Rubbing Alcohol / Vodka / Whiskey do not work for this recipe.
Method 2: Hot water — Disinfect Bandage
- Get a clean Bandage or Rag.
- Fill any suitable fluid container with at least 0.5 L Water. A Cooking Pot or Saucepan works, but the recipe is not limited to those two item types.
- Heat that water until the container is accepted as very hot. The recipe tooltip is: “Water container needs to be very hot.” A pot glowing red can be a useful visual cue while heating, but success depends on the hot-water check and 0.5 L of water—not on a single prop color alone.
- With the bandage/rag and the kept hot container, run Disinfect Bandage from the medical craft list. Time cost is 100. The container stays in inventory; 0.5 L of water is consumed.
- Result: same sterilized items as the alcohol route.
For heating water on stoves, ovens, campfires, and microwaves, see the boiling water guide. For long-term water supply after the tap fails, see the rain collector guide.
Cleaning dirty bandages (not sterilizing)
Clean Bandage is a separate medical inventory craft (time 40). It turns dirty wraps back into clean non-sterilized items using 0.5 L of any water-category fluid (does not require the hot-water test):
- Bandage (Dirty) → Bandage
- Rag (Dirty) → Rag
- Also cleans dirty denim strips and leather strips
Clean first if you only have dirty rags, then sterilize with alcohol or hot water if you want the disinfecting effect.
Where to get materials
Bandages
Medical loot, bathrooms, clinics, first-aid kits, and zombie medical bags. Factory-made bandages are the best strength (4.0) before and after sterilizing.
Rags
Rip clothing and sheets into rags. Weaker wrap (strength 2.0) but very renewable. Details: sheets and bandages.
Alcohol fluids
Bottle of Disinfectant in medical / bathroom loot; whiskey and vodka in bars, kitchens, and liquor stores. Save rubbing alcohol for medical work when bottles are scarce.
Hot water
Any heat source plus a water-holding cookware or bottle that the game can heat. Needs power or fuel depending on the appliance, and enough water volume for 0.5 L per craft.
FAQ
Does sterilizing make a bandage heal faster because of higher strength?
No. Clean Bandage and Bandage (Sterilized) both use strength 4.0. Rag and Rag (Sterilized) both use 2.0. The upgrade is the disinfecting state applied with the bandage, not a higher strength value.
Must I use a Cooking Pot or Pan?
No. The hot-water recipe keeps any matching fluid container that holds 0.5 L Water and is very hot. Pots and pans are common choices, not exclusive ones.
Can I sterilize a dirty bandage in one step?
No. Disinfect recipes take clean Bandage or Rag only. Clean dirty items with Clean Bandage first, then disinfect.
Is alcohol always better than hot water?
For craft speed and fluid cost, yes (40 vs 100; 0.1 L vs 0.5 L). If alcohol is reserved for drinking or wound dousing and you already have a kettle of hot water, the hot route is still fully valid.
Do I need First Aid skill or a magazine?
No. These medical crafts do not require a skill level or a magazine unlock—you can run them as soon as you have the materials.