Easy wins · spices.
Turmeric, paprika, chili powder, cumin from non-US suppliers are the #1 highest-likelihood adulteration source for lead chromate. The brightener makes the color brighter, and the lead comes with it.
01
Why imported spices.
Lead chromate is a bright yellow-orange pigment that has been used in some regions as a deliberate adulterant in spices. It makes turmeric, paprika, and chili look richer and more saturated, and it makes the spice toxic. FDA and CDC have flagged repeat offenders. The adulteration is illegal but not consistently enforced at port.
The bright-color premium.
Brightly colored bulk spice from a non-US seller is the highest-likelihood lead source in your pantry. Especially turmeric.
02
How to scan a spice.
1
Sprinkle a small amount on a clean white surface.
A paper plate, a piece of white parchment.
2
Drip the reagent.
One bead is enough.
3
UV read after 30 seconds.
Green glow on the spice grains means lead pigment.
03
What to do.
If a spice glows, throw it out. Replace with a brand that publishes third-party heavy-metal testing. McCormick, Penzeys, Burlap & Barrel publish. Spice Islands and some private-label organic brands do not.