Hommer Zhao
Founder & General Manager, Home Cafe Lab
Hommer Zhao is the founder and general manager of Home Cafe Lab. He runs the site and is responsible for its content: the recipes, the ratio guides and the calculators.
If you spot an error, please report it through the contact page.
Guides by Hommer Zhao
Choosing a Milk Frother
Choose a handheld frother, electric jug or steam wand by checking the exact model’s hot and cold modes, power source, capacity and cleaning instructions.
How to Froth Milk Without a Machine
Froth milk at home without any special equipment using a jar, whisk, or French press. Get cafe-quality foam in under 2 minutes with tools you already own.
Milk for Frothing
Milk choices for hot lattes and cold foam, including dairy and plant-based options, temperature, and preparation notes.
Coffee to Water Ratio Guide
Learn the right coffee-to-water ratio for every brew method. The SCA golden ratio is 1:15-1:17. Covers drip, pour-over, French press, and cold brew coffee.
How to Make Iced Coffee at Home: Flash Brew
A flash-brew method using 25 g ground coffee, 200 g hot brew water and 200 g ice. Weigh the inputs separately and brew directly over the ice.