Testing the shelf life of your products: Observing a naturally compliant lotion for rancidity

I realized I haven’t shared much about testing our products – a great question that came up in the live Zoom meeting about oils yesterday – so I thought I’d share my experiences with one of my favourite lotions for shelf life. Whenever I make a product, I like to observe it for 6 months…...

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Get a bloody thermometer already! Equipment review

As I’ve been as wandering around the ‘net over the last few weeks, I’ve noticed people aren’t bothering to measure the temperature of their products any more. A popular blogger makes lotions by telling you to put the heated water phase and heated oil phase in a double boiler, then tells you to remove it…...

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Members’ Q&A: How to administer tests on emulsions for stability?

In the April Q&A, Tash asked: I like mucking about with things to see if I can break them. I’ve done it previously by deliberately contaminating my emulsified sugar scrub with bread, fish tank water etc to see how well the preservative system held up. So I was interested to read about the freeze-thaw test in the…...

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