Frequently asked questions about stains

First: do not rub. Remove excess by lifting solids with a spoon and absorbing liquids with a clean cloth in light touches. Apply cold water (never hot) to dilute the pigment and pre-treat with the appropriate product according to the type of stain. Every minute delayed reduces significantly the chances of complete removal.

Cold water is always used for protein stains (blood, egg, milk, sweat, urine): heat coagulates the protein and fixes it irreversibly in the fiber. For oil, grease, and wax stains, warm or hot water improves dissolution. In case of doubt, always start with cold water: it never worsens the situation.

Oxygen-based stain removers release oxygen that oxidizes the pigment, but this same process can attack the dyes of colored fabrics (dark blues, blacks, reds) or damage delicate fibers such as silk, wool, or acetate. For colored clothes and delicate fabrics, enzymatic cleaners are safer although they require more time to act.

Yes, but the key is not to use water directly. The halo forms when the product pulls the grease toward the outer edge as it dries. The correct method: talc or baking soda dry to absorb the grease, then foam cleaner for upholstery applied with a cloth (never direct spray), working always from outside to inside.

Only enzymatic cleaners with urease and protease break the crystals of uric acid responsible for the odor. Conventional cleaners remove the visible pigment but leave the odor that reappears with moisture. With the correct product and sufficient time to act, complete removal is possible even in old stains.

As a reference: wine and coffee stains on cotton, 10–3,0 minutes are ideal. Grease stains, up to 24 hours if they have not received heat. Dry blood stains, several days are manageable with the correct treatment. Stains that have gone through a dryer or iron have much greater difficulty because heat consolidates the pigment in the fiber.

Enzymatic cleaners use enzymes that break down specific molecules (proteins, fats, starch) without affecting dyes. They are safer for colored clothes and delicate fabrics but require more time to act (30–60 minutes). Oxygen-based cleaners act faster and whiten, but can fade colored fabrics.

No. The classic bleach (sodium hypochlorite) would fade colored clothes. For colored clothes, there are chlorine-free bleach (based on percarbonate or hydrogen peroxide) which are safer, although they can also affect very intense colors. Always read the fabric label before applying any product.

Baking soda is useful for absorbing odors and fresh grease stains when dry. White vinegar helps with calcium stains. However, the mixture of both neutralizes and loses effectiveness. For real and persistent stains, specific products (enzymatic or active oxygen) are always more effective.

Hang the clothes in a well-ventilated area for several hours. If it persists, spray with a mixture of water and white vinegar (1:1) and let it dry in the air. Baking soda in dry form also absorbs odors: apply it, let it act for 30 minutes, and shake. If the smell is very strong, a wash with sodium percarbonate at 40°C usually solves it definitively.