This guide assumes that you got all DLCs up to Better Save Soul. Other DLC combinations were not tested.

This guide assumes that you're nearing the endgame because a 26-white corpse is not required unless you aim for a hyper-productive zombie or stellar graveyard. You got Embalming Table II, Preparation Table II, the perks Gentle Butcher, Surgeon, and Cultist.

Many tangents are omitted because this guide aims to be concise. The omitted info can easily be googled.

You bring a corpse to the preparation table. This is a donor corpse.

Blood, Fat, Skin, and Skull always have the same stats. If you don't have them, then extract them.

Brain, Heart, and Intestine have random stats. For them, you want to extract those that have at least 2 white skulls in order to save on the soul shards.

Before enhancing the parts at the Organ Workbench, take a look at the total sum of red skulls.

If you make a 26-white-skull Zombie, then any number of red skulls is fine because zombies are the same no matter how many red skulls they have. If you make a 26-white corpse for the graveyard, then you need a combination of parts that has at most 2 red skulls. Two or fewer is fine, more than two is not fine.

The red-skull stats are:

• Blood: +1.
  
• Fat: +1.
  
• Flesh: 0.
  
• Skin: -1.
  
• Brain, Heart, Intestine: ranges from -3 to +4.
  
• Skull: always -1. Can't be changed. Use it if you have one too many red skulls.
  
• Bone: always 0. Can't be changed. Useless to us.

For both red and white skulls, you can only increase their number on the Organ Workbench. So, if you got more than two total, you need to swap Brain, Heart, or Intestine because other parts always have the same starting number of red-skulls.

After you checked that you have no more than two red skulls in total, go ahead an enhance Blood, Fat, Flesh, Skin, Brain, Heart, and Intestine to +3 White Skulls.

Choose a corpse that will host the resulting organs. Remove its previous contents.
You want a corpse that is above 95% freshness. The corpse doesn't degrade on the Embalming Table II, Preparation Place II, or Fridge Pallet.

Put enhanced Blood and Fat from the previous step into the corpse, so it has two red skulls. Those two red skulls are needed to make Silver and Gold injections work - they don't work if the corpse got not enough red skulls at the moment.

There are four injections to use in our case: Lye, Glue, Silver, and Gold.

• Lye: +1 red, +1 white.
  
• Glue: +1 white.
  
• Silver: -1 red, +1 white.
  
• Gold: -2 red, +2 white.

The result of four injections is -2 red, +5 white.

Please google if you don't know how to make the listed injections. Because Silver and Gold injections have two recipes each, you can choose the ones that fit your resources better.

After you applied all four injections, insert all other body parts that you've prepared. In our example with Blood and Fat, it would be Flesh, Skin, Brain, Heart, Intestine, and optionally Skull.

The corpse has 7 parts that can be cranked to +3 white skulls: Blood, Fat, Flesh, Skin, Brain, Heart, and Intestine. It gives 21 white.
Embalming gives 5 more white, resulting in a 26 white corpse.

If you got suggestions on how to make this guide better, feel free to leave a comment!