Whether it's choosing the wrong glass for your wine or abiding by old-school whisky rules, we make mistakes every day when it comes to how we eat and drink.
And buying and making coffee is no exception.
To find out what we're doing wrong when we buy, order, and drink it, Business Insider spoke to Will Corby, head of coffee at Pact Coffee, a London startup that delivers freshly roasted and ground coffee by post.
Corby has been working in the coffee industry for 12 years, has won and judged global barista awards, ran his own coffee shops, and also has experience roasting.
"For the past 12 years, I've specialised in the absolute pinnacle of coffee quality and optimising the process of growing it, shipping it, importing it, brewing it," he said.
He's also been a head judge -- appointed by the Colombian government -- for the Colombian National Quality Competition for the past two years.
Now at Pact Coffee, he works on relationships with coffee founders to "develop practices, and increase quality and production in a sustainable manner," he said.
"We want to show the coffee in the best light we can, brew the coffee in the best possible way, [and] provide it to [people] in a way that makes it easy."
However, he said there's a lot of steps that go into making sure people have a good cup of coffee every day -- and there are plenty of things you can do to make sure you're getting the most out of your java.
1. Not buying it fresh like you would vegetables or bread...
2. ...Then keeping it for longer than a month
3. Not making sure your grind size is consistent
4. Letting it brew for less than 4 minutes...
5. ...And forgetting to decant what you don't drink straight away
6. Using a less-than-clean cafetiere
7. Adding milk and sugar when you don't need it
8. Buying instant for a cheap, easy fix
9. Not knowing how much caffeine you're consuming