The bowl you heat tomato sauce in.
Have you tested it?
Vintage, imported, and handmade pottery can leach lead directly into food. Heat and acid pull it out faster. Your child eats from these dishes every day.
Test Before the Blood Test → Get 2 Kits $99THE CRITICAL WINDOW
Your pediatrician tests blood lead at 12-24 months.
If the number comes back elevated, the exposure already happened. The doctor will say "reduce sources" , but won't tell you which ones, or where they are. The window to prevent the damage is before the blood test, not after.
Lead accumulates silently. There is no pain, no rash, no symptom until the damage is severe. The only way to know is to test the sources.
What lead does to a developing brain
These numbers are not projections. They are measured outcomes from studies of hundreds of thousands of children. Lead is not a risk factor for cognitive decline , it is a cause.
3 µg/mL
FDA action level for lead leaching from pottery and ceramics
500x
how much more vintage glazed pottery can leach compared to FDA's action threshold
Daily
repeated exposure from one contaminated dish accumulates over weeks and months into a measurable blood lead increase
This is what lead did to an entire generation.
The curve follows the gas pump. Leaded gasoline, burned in 200 million cars for 70 years, exited tailpipes as airborne particulates and entered children through air, dust, and soil. Press play.
Child blood lead in the US, 1925-2020
Geometric mean µg/dL for children ages 1-5 (NHANES II/III/Continuous) overlaid on tetraethyl lead added to US gasoline (EPA). Sources: NHANES CDC, ATSDR, Annest 1983, Mahaffey 1982.
1925
824M
IQ points erased from the US population by leaded gasoline exposure (McFarland et al. 2022, PNAS)
$50.9B
estimated annual cost of lead-attributable cognitive losses in the US (Trasande & Liu 2011)
0.65
µg/dL , today's geometric mean for US kids. Down from 15+ in 1970. Proof that removing the source works.
How glaze becomes a daily dose
Lead was used in ceramic glaze for thousands of years. It creates a smooth, glossy, durable finish. It also leaches into whatever food touches it.
1
Lead-based glaze applied during firing
Traditional, artisan, and many imported glazes contain lead oxide. It gives the distinctive glossy finish of antique and handmade ceramics.
2
Acidic food or heat activates leaching
Tomato sauce, citrus juice, vinegar, and even dairy with lactic acid react with the glaze. Heat dramatically accelerates the reaction.
3
Lead dissolves into food during serving
Leaching is not visible. The food looks, smells, and tastes normal. Lead contamination has no sensory signature.
4
Child eats from dish daily
A child eating from a leaching dish at every meal receives multiple daily exposures. Bioaccumulation builds over weeks before any test would catch it.
5
Blood lead rises imperceptibly
The blood test at 12-24 months catches the cumulative total, not each individual dose. By then, months of exposure have already occurred.
Lead leaching from vintage glazed pottery by food type
µg per serving, 2-hour contact (FDA leach test conditions). The FDA action level is 3 µg/mL. Acidic foods dramatically accelerate leaching from compromised or vintage glazes.
FDA action level for flatware: 3 µg/mL. Source: FDA Center for Food Safety; Gulson et al. 1997.
Tap dish to simulate
FluoroSpec test
FluoroSpec test
FluoroSpec reagent causes lead-containing glaze to fluoresce bright green. No lead = no glow.
The damage is dose-dependent. And there is no safe dose.
Both charts below represent the same body of research looked at two different ways: IQ loss as a function of blood lead level, and ADHD risk by exposure quartile. Neither has a zero-risk threshold.
How lead erases IQ points
Lanphear et al. 2005 (n=1,333): IQ loss is steepest at the lowest exposures. There is no safe level. Hover a point for details.
0 µg/dL , no detectable lead
3.5 µg/dL , CDC reference
20 µg/dL , 1970s US average
The earnings effect
Salkever 1995 calculated a 2% reduction in lifetime earnings per IQ point lost. At 5 µg/dL , slightly above the CDC reference , that is roughly $80,000-$190,000 in lost lifetime earnings per child (Boyle et al. 2021, adjusted for current wages). Lead is not a health problem. It is an economic problem wearing a health problem's coat.
Find the source before the blood test does.
FluoroSpec is a perovskite quantum dot reagent. When it contacts lead , in paint, glaze, dust, or soil , it forms fluorescent crystals that glow bright green under UV. Positive result in 30 seconds. No lab. No waiting.
30s
Result time per surface
⬤
Green glow = lead present
∞
Tests per kit (30-50 surfaces)
EPA
TSCA LVE L-25-0206 registered
FIND THE SOURCE BEFORE THE BLOOD TEST
Know which dishes are safe in 30 seconds.
FluoroSpec's reagent fluoresces bright green in the presence of lead , even through glaze. Test every dish your child eats from, including ones that look perfectly safe.
DishesPotteryToysPainted surfacesSoil
JewelryVinylImported items
Tested by 50,000+ parents across 38 states. Results in 30 seconds. EPA TSCA LVE L-25-0206.