Chocolate
The longest treatment sequence in the carpet trade's database — five agents — because it is three kinds of soil at once.
Precautions
- Test on an inconspicuous area first
- Ventilate the area
- Never mix with other cleaning products
In detail
Chocolate is fat, protein and pigment together, and the treatment reflects that: the carpet trade's entry runs solvent, then detergent, then vinegar, then warm water, then an ammonia solution — the longest sequence of any entry in its database. Each step addresses a different component, which is why shortening it leaves a shadow. The first action is mechanical and easy to skip: scrape semi-solids with a rounded spoon before any liquid, because a solution applied to a solid deposit spreads it. Two cautions run through the sequence. Solvent must never be poured onto the carpet or allowed to reach the backing, where it damages the latex bonding the two backings together, so it goes on the cloth. And ammonia, the last agent, carries its own warning: used improperly it can cause a colour change, so a hidden area must be tested first. One further caution the trade page does not carry: an ammonia solution applied where a bleach-based product has been used is the documented route to chloramine gas in a home.
Why
- Chocolate is explained by Fat-soluble pigments
Two problems in one mark: the fat carries the colour, so a water-based attack moves neither.
Sources for this page
Sources
Spot Solver: spot and spill removal procedures
The Carpet and Rug Institute (CRI) · Trade or professional body
Relied on for: That chocolate is treated with solvent, detergent, vinegar, warm water and then an ammonia solution, that semi-solids are first gently scraped with a rounded spoon, that solvent must not reach the backing, and that ammonia used improperly can cause a colour change. (states this directly)
Hazard Alert — Worker Health and Safety: Mixing Bleach with Other Cleaning Products Can Be Deadly
New Jersey Department of Health, Environmental and Occupational Health Surveillance Program · Government or regulator
Relied on for: That combining an ammonia product with a bleach product releases chloramine gases, and that exposures arose from one product being applied where another was already present. (states this directly)