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No Fear, No Fairy Dust: How We Test Enzymes Before We Talk About Them
How Old Chemistry evaluates dishwasher powder enzymes without fear or fairy dust: base formula first, protease and amylase only if they earn their place. Read more...
Old Chemistry dishwasher powder beside a beaker illustrating microplastics research
Microplastics, Dishwasher Detergent, and the Human Body: What the Science Actually Says
A science-based look at microplastics, PVA dishwasher pod film, and what researchers have found in human blood, placenta, lungs, stool, and health studies. Read more...
What Is in Dishwasher Detergent Powder? Four Jobs That Matter
A plain-language guide to the four ingredient jobs in Old Chemistry dishwasher powder: alkalinity, wash support, mineral management, and food-soil enzyme review. Read more...
Your Dishwasher Has an Opening Act. Pods Usually Skip It.
Pods are convenient, but powder gives you timing and dose control. Here is why the dishwasher pre-wash matters and how powder can use more of the cycle. Read more...