To make an air freshener spray, you need four core types of materials—selected for safety, solubility, and scent stability—to ensure the final product works effectively and safely.
Base liquids: Deionized water or distilled water is essential, as it prevents impurities from affecting the spray’s clarity. Food-grade ethanol helps dissolve essential oils and speeds up scent diffusion; if you’re concerned about irritation, food-grade glycerin can substitute it (glycerin also extends scent longevity).
Scent sources: Choose natural essential oils (for safety and a natural aroma) or food-grade fragrances (ensure compliance with safety standards and control dosage to avoid overpowering scents).
Preservatives (for storage over 1 week): Add compliant options like food-grade phenoxyethanol, following safe dosage guidelines to prevent liquid spoilage and bacterial growth.
Basic liquids (deionized water, ethanol, glycerin) directly impact the spray’s safety and effectiveness. Buy them through formal channels and pay close attention to specifications and purity.
Sourcing Channels
Online: Search for “food-grade deionized water,” “food-grade glycerin,” or “food-grade ethanol” on general e-commerce platforms or specialized raw material stores.
Offline:
Chemical supply stores stock all three liquids.
Supermarkets: Glycerin is often in the skincare raw material section; ethanol labeled “edible alcohol” can be found in the grain and oil section.
Pharmacies: Medical alcohol can be used as a backup if food-grade ethanol is unavailable.
Purchase Considerations
Prioritize “food-grade” or “cosmetic-grade” labels—avoid industrial-grade products, which contain impurities and pose health risks.
Check purity: Deionized water should be ≥99.9% pure; ethanol 75%–95%; glycerin ≥95%.
Inspect packaging integrity and shelf life to ensure ingredient stability and prevent pre-purchase deterioration.
Fragrance ingredients (natural essential oils, food-grade fragrances) are key to the spray’s aroma. Source them from reliable channels and verify quality to avoid inferior or unsafe products.
Sourcing Channels by Type
Natural essential oils: Buy from professional essential oil stores (online brand shops or offline boutiques), maternity and baby platforms (known for stricter safety standards), or supermarket beauty sections.
Food-grade fragrances: Focus on compliant sources—food raw material stores, supermarket baking sections, or qualified maternity and baby platforms. Avoid non-food channels, which may sell unregulated products.
Quality Checks
Labels: For essential oils, labels must list the botanical name (e.g., Lavandula angustifolia for lavender) and extraction method (e.g., “steam-distilled”). For fragrances, labels must state “for food use” and include an SC (production license) code.
Physical state: Most essential oils should be clear with no sediment (except for a few exceptions like sandalwood). Food-grade fragrances should have no stratification or unusual odors.
Brand reputation: Select established brands with favorable customer reviews.Reject “three-no” products (no brand name, no ingredient list, no certification).
Preservatives (e.g., phenoxyethanol, vitamin E) are necessary for long-term storage. Source them formally and ensure compliance with safety standards to prevent bacterial growth and liquid spoilage.
Sourcing Methods
Phenoxyethanol: Prioritize online professional raw material stores; search for “food-grade phenoxyethanol” or “cosmetic-grade phenoxyethanol” to filter options.
Vitamin E: Buy online from health product stores or raw material shops. Offline, find it in pharmacies or supermarket health product sections. Choose pure “food-grade” or “cosmetic-grade” vitamin E oil.
Compliance Standards
Select only “food-grade” or “cosmetic-grade” products—never industrial-grade, which contains harmful impurities.
Inspect certifications:
Compliance with the Safety and Technical Standards for Cosmetics is mandatory for phenoxyethanol.
Vitamin E must have an SC certification number (proving production compliance).
For imported products, ensure they have Chinese labels and imported goods inspection and quarantine certificates.
Auxiliary tools (spray bottles, measuring cups, stirring sticks) need to be convenient to source and chemically stable—avoid reactions between tools and spray liquids.
Sourcing Channels
Online: Search for “food-grade auxiliary tools” on e-commerce platforms. Opt for stores with strong sales and good feedback to buy all tools at once.
Offline: For urgent needs, shop at home goods stores, supermarket home goods sections, or grocery stores—you can inspect tools in person before purchasing.
Material Requirements
Spray bottles: Prefer food-grade PET material (acid- and alkali-resistant, suitable for liquids with essential oils or ethanol). Avoid ordinary plastic, which may leach chemicals.
Measuring cups: Use food-grade PP (polypropylene) or glass—both have clear scales and are easy to clean.
Stirring sticks: Choose food-grade silicone, glass, or stainless steel. Avoid wooden sticks, which trap residue and promote bacterial growth.
Ensure all tools meet food contact safety standards to prevent contamination.