Make fake blood

How to

Basic Blood

I don’t really have any recipes.  I usually buy the fake blood that is available around Halloween.  I have found that if you wait until just a few days before Halloween or just after, you can get it at 1/2 price.
Linda Treadaway

I took a Forensic Science Certification Program last year at the
University of Washington. Our guest speaker on bloodstain pattern
analysis, Terry McAdam, Supervising Forensic Scientist for 
Washington State Patrol Crime Labs, suggested this simple yet effective recipe. He uses it when he trains folks. It worked great with my students:

2 Tablespoons cocoa powder
4 Tablespoons corn syrup
1 tsp red food coloring
2 drops green food coloring

Mr. Shawn Curtis, fingerprint expert for the Bellevue, WA police
department, talks to my classes and brings in his alternate light source
along with stained rugs and clothing. He tells the students they are from crime scenes, but in actuality he just uses bleach to mimic spit and extra virgin Napoleon brand olive oil to mimic semen. 
Louise Baxter
Bainbridge High School

I order blood from They can supply defibrinated bovine blood that works very well for crime scene, blood spatter exercises and testing with luminol. NeoSci also supplies blood but the
lampire is much more authentic 
and useful.
Meg Langfur
Mullen High School

I just use stage blood diluted 50% with water.  I buy Cinema Secret’s FX blood by the gallon.  I have a local supplier but you can buy it online at
Jeanette Hencken
Webster Groves High School

Chocolate Blood

I was promised the recipe years ago, but only came across it quite recently. It was worth the wait. The mixture may seem odd, but it tastes pretty good, looks surprisingly like real blood, splatters like real blood, dries like real blood, and had several people asking me if I was really okay after that staged fight....

1/2 cup water
1 tablespoon cocoa powder
3 or 4 tablespoon corn syrup
1/2 to 1 teaspoon red food coloring
2 drops yellow or green food coloring (optional)

Mix the cocoa powder thoroughly into the water before adding the other ingredients - it may help to use warm water. After adding the rest, blend the concoction well, and then wait for it to settle a bit. Either skim the bubbles & chocolate scum off the top with the edge of a kleenex, or pour the mixture into another container. The longer it sits, the more the cocoa tends to settle to the bottom, which oddly mimicks the effect of real blood seperating.

If you splatter this mixture onto cloth, it makes neat two-part marks which dry into pretty convincing bloodstains. If you let it run from a victim’s mouth and then let it dry, the blood darkens and cakes to the skin in much the same way real blood does. I can also say from personal experience that any washcloth used to wipe down the ‘bloody’ face afterwards looks remarkably realistic, too.

Gore Blood

2/3 cup Oriental ‘Cherry’ Dipping Sauce 
1/3 cup Water
1/2 Teaspoon Red Food Coloring 
2 or 3 Drops Green Food Coloring 

Mix the Cherry dipping sauce with water, thoroughly enough to thin down the sauce into a gooey consistancy. Add food coloring. Stir again, and let the sauce sit, preferably in a fridge. When needed, take it out and spoon it onto areas where ‘gore’ effect blood is needed. The blood will drip in glops & globs, but doesn’t puddle out like watery blood does. 

Put it on the outside of clothes so they look suitably bloodied. NOTE: This will stain clothing, so don’t get it on anything important. 

From Raven J. Brown who has 
several recipes for fake blood at