Surface spray with Coco Glucoside

Formula objective. An aqueous cleansing spray for washable surfaces in which Coco Glucoside is used as the main cleaning agent. It is intended as an indicative household formula, not as a cosmetic or disinfectant.

Why these ingredients were chosen.

Coco Glucoside helps solubilise light dirt and superficial greasy residues through its surfactant action.
Water acts as the vehicle and allows convenient spray application.
A low surfactant level avoids excess foam during use and makes removal with a damp cloth easier.
The preservative is included to protect the aqueous mixture during storage.
Citric acid allows the pH to be adjusted when necessary, always checking surface compatibility.

Intended users. Formulators who want to trial a gentle cleaner for washable, non-delicate surfaces. It is not intended for marble, acid-sensitive natural stone, untreated wood or screens.

Skill level. Easy level: weighing, mixing and packaging are sufficient, but it must be clearly labelled as a household cleaner and tested on a small area first.

Validation required. Check pH, stability, smell, spray-container compatibility and performance on each surface. It does not replace registered biocidal products or disinfectants.

Base formula

Include	Product	%	Quantity	Price / pack size
Gelled aqueous phase
	Distilled or deionised water	78.2 %	782 g	Manual addition
Surfactants
	Coco Glucoside	8 %	80 g	€2.11 used (1 x 125 ml · purchase €3.30) Approx. leftover 45 ml
	Decyl Glucoside	5 %	50 g	€1.16 used (1 x 125 ml · purchase €2.90) Approx. leftover 75 ml
	Denatured Alcohol 96º	8 %	80 g	Manual addition
Preservation and pH adjustment
	Geogard 221 / Cosgard	0.8 %	8 g	€1.64 used (1 x 10 ml · purchase €2.05) Approx. leftover 2 ml
	Citric acid in a 20% solution	0 %	0 c.n.	Manual addition

Step by step

1 Room temperature

Prepare a lump-free aqueous phase

Start with a clean, disinfected mixing beaker, spatula and final container. Water-based formulas are not a place to improvise: weigh everything before you start and work calmly.

If the formula contains xanthan gum, mix it with the glycerine or humectants first. This wets the gum evenly and makes lumps much less likely to form.

Add the water gradually, in several additions, mixing gently after each one. If you see small lumps, do not whisk vigorously: leave it to rest for a few minutes and stir again until the base looks uniform.

2 Room temperature

Add the surfactants gently

When the aqueous phase is uniform, slowly incorporate the Coco Glucoside. Use slow, folding movements to avoid filling the product with foam.

Then add the remaining surfactants one at a time. Wait until each ingredient is well distributed before incorporating the next; this gives you better control of the texture and avoids concentrated areas.

For a surface cleaner, the aim is not excessive foam but a uniform mixture that sprays well and can be rinsed or wiped off easily.

3 Room temperature

Preserve and adjust the pH

Add the preservative when the mixture is uniform and stir for at least one minute using slow movements. The preservative must be distributed throughout the formula, not left in one area.

Measure the pH and compare it with this recipe's target range: 6,0 - 7,5. If it is high, adjust with a 20% citric acid solution, drop by drop.

After each drop, mix and measure again. The pH does not always change immediately, so it is better to proceed slowly than to overshoot and have to correct in the opposite direction.

Final

Allow to rest, check and package

Cover the beaker and leave the formula to rest for 24 hours. This resting period helps the foam subside and the gum finish hydrating, allowing you to assess the actual viscosity.

The next day, check the smell, colour, separation, lumps, transparency or opalescence and texture. If anything changes in an unusual way, do not package it yet: first you need to understand what has happened.

Before using it more generally, test the cleaner on a small area of the surface. Do not present it as a disinfectant unless it is developed and validated specifically for that use.

Preservation, shelf life and validation

Questions, improvements and possible corrections

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