Choosing a concentration, IFRA limits, essential oils, maceration. We write down what we learn by trying — notes that are actually useful, not marketing copy.
Fragrance oil has a density of about 0.95 g/ml, so 1 gram is roughly 1.05 ml. The conversion formula, a ready-made table, densities for alcohol and premixed base, and how to measure your own oil's density.
Read the articleWhy your freshly mixed perfume smells of alcohol, how long maceration takes, and how to store it while it rests — plus what resting does not fix.
Read the articleIs the 25% in a perfume formula by volume or by weight? The formula for each method, how much they actually differ, and which one you should be using.
Read the articleCan you make perfume from essential oils, how do they differ from fragrance oils, and how do you build top, heart and base notes? With the real limits of natural materials.
Read the articleWhat you need to make perfume at home, how fragrance oil and alcohol are blended, and how to make your first bottle. A practical walkthrough for hobby perfumers.
Read the articleWhere the supplier's “use up to 20%” figure comes from, which line of the IFRA certificate to read, and what actually happens if you go over the limit.
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