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FRAGRANT HOME
Room spray with Polysorbate 20
Create your own room spray without added ethanol. Polysorbate 20 helps incorporate fragrance evenly into the water-based formula, while your chosen scent adds a personal touch to your home.
Ingredients for 100 g
| Ingredient | Percentage | Weight |
|---|---|---|
| Distilled water | 94.2% | 94.2 g |
| Polysorbate 20 | 4% | 4 g |
| Fragrance suitable for room sprays* | 1% | 1 g |
| Cosgard | 0.8% | 0.8 g |
| Total | 100% | 100 g |
Check the IFRA certificate for your chosen fragrance: Category 10B must permit a fragrance concentration of at least 1% in the finished product.
If required, prepare a 10% citric acid solution or a 10% L-arginine solution to adjust the pH. Deduct the amount of solution used from the distilled water so that the final batch weight remains 100 g.
Method
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Prepare your equipment. Clean and disinfect your mixing vessel, stirring utensil and spray bottle.
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Combine the fragrance and Polysorbate 20. Weigh both ingredients and mix thoroughly.
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Add the water. Gradually add the distilled water while stirring gently. Avoid vigorous mixing to minimise foaming.
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Add Cosgard and mix well.
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Check the pH, aiming for 5–6. If it is higher, lower it with a 10% citric acid solution. If it is lower, raise it with a 10% L-arginine solution. Add drop by drop, mixing thoroughly and measuring again after each addition.
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Check the mixture. Leave a sample for 24–48 hours, then check its appearance, scent, pH and spray performance. This is an initial check, not confirmation of long-term stability.
Purpose and use
This spray is intended to fragrance the air in your home. Start with one or two sprays into the air, away from faces, people, animals and food. Do not spray directly onto skin, fabrics, furniture or floors.
What to expect
The result is a fluid room spray with a pleasant scent. Depending on the fragrance, it may be clear or slightly cloudy, but it should remain uniform, without visible oil droplets or a separate layer.
The Polysorbate 20-to-fragrance ratio is a starting point. If the fragrance separates, make a new sample using more Polysorbate 20 and correspondingly less water, or reduce the fragrance concentration. Shaking alone does not resolve inadequate solubilisation.
Store tightly closed, away from heat and direct sunlight. Check stability and preservative efficacy before assigning a shelf life. The suitability of Cosgard for this room spray must also be confirmed with the supplier.
???? MOJCA MILA’S TIP: How to make a 10% solution
1 g of ingredient + 9 g of distilled water = 10 g of a 10% solution. Weigh everything, including the water!
Prepare two separate solutions:
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To lower pH: dissolve 1 g of citric acid in 9 g of distilled water.
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To raise pH: dissolve 1 g of L-arginine free base in 9 g of distilled water.
Stir until fully dissolved. Prepare fresh solutions in clean, labelled containers. Add them to your product drop by drop, mixing and measuring the pH again between additions.
