Luckily the folks atSerious Eatshave all this and more in their cocktail mixing guide.

Those veins contain chlorophyll, and as it turns out, chlorophyll is bitter.

Where will that chlorophyll wind up?

If you’ve ever had a grassy-tasting mojito, that’s probably why.

The handle of a rolling pin will do in a pinch.

If you do buy a muddler, be careful what you buy.

You want a muddler that has not been varnished or lacquered.

The varnish on a muddler will eventually wear off, and where will it wind up?

So choose a muddler made of unvarnished wood.

How to Make Cocktails at Home: The Serious Eats Guide to Essential Cocktail Techniques| Serious Eats