Coffee brewing guides, gear help and recipes
Brew Better Coffee at Home with The Brewing Diary
Clear, practical answers for everyday coffee questions, from caffeine content and grind size to cleaning your coffee maker, pulling espresso and whisking matcha.

Coffee Guides by Category
Jump straight to the topic you are brewing. Every category is a full library of step-by-step guides, 1,900+ in total and new ones every week.
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Coffee Basics
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About The Brewing Diary
Welcome to The Brewing Diary, a coffee blog for home brewers. We research coffee makers, grinders, accessories and beans, and share brewing tips, maintenance advice and drink recipes to help you get more from every cup.
Coffee Machine Reviews
Brewing performance, ease of use, durability and value, from budget brewers to espresso makers.
Coffee Gear Reviews
Grinders, kettles, scales, frothers and filters that genuinely improve your cup.
Brewing Guides
Pour-over, French press, AeroPress, espresso and cold brew with the right grind, ratio and temperature.
Coffee Reviews
Single-origin beans and blends compared on aroma, flavor, roast level and freshness.
Coffee Tips & Guides
Storing beans, cleaning equipment and fixing common brewing problems.
Recipes & Inspiration
Cappuccinos, lattes, iced coffee and seasonal drinks made café-style at home.
Frequently Asked Coffee Questions
What is The Brewing Diary?
The Brewing Diary is a coffee blog for home brewers. We publish brewing guides, coffee maker how-tos, espresso and matcha explainers, and drink recipes written to answer real everyday coffee questions.
How much caffeine is in a cup of coffee?
An 8 oz cup of brewed coffee usually contains roughly 80–100 mg of caffeine, but bean type, roast, grind and brewing method all change the number. See our full breakdown: caffeine in an 8 oz cup of coffee.
What grind size should I use for AeroPress?
Most people start with a medium-fine grind, a little finer than table salt, then adjust with steep time and taste. Our AeroPress grinding guide walks through it.
How often should I descale my coffee maker?
A common rule of thumb is every one to three months, more often with hard water. Your machine’s manual gives the maker’s schedule, and our coffee maker guides cover model-specific cleaning and descaling.
I’m new to brewing coffee at home. Where should I start?
Start with our brewing guides to pick a method, then read up on coffee-to-water ratios and grind size. Those three choices shape most of the flavor in your cup.
Can’t Find What You’re Brewing?
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