Know-How
Caffeine, roasts, ratios and recipes, answered straight.
2 guides · updated Sep 2026
Know-HowDoes Chai Have Caffeine?All of it comes from the black tea, none from the spices. Here's how much is in your mug or your latte, and which box to keep for the evenings.
Know-HowHow to Roast Coffee at HomeA batch takes about fifteen minutes, some smoke, and green coffee at about $10 a pound. What you get is a bag of beans roasted the day you want, as light or dark as you like.