There's a number of different things you can do to make a coffee low-acid. We'll combine all the tips in this post - using a low acid origin, lowest acid roast, and lowest acid brewing method.
5 from 3 votes
Ingredients
36gcoffeedark roast, brazilian
360gwater12 oz, not distilled
Instructions
Combine 36g (1.2 oz) dark roasted brazilian coffee with 360g (12 oz) room temperature water in a french press or other container
Store in fridge for 12-24 hours
Remove coffee grounds from water either by straining
Serve within 24 hours
Notes
Do not use distilled water - the lack of minerals impairs taste
You can substitute the Brazilian coffee with Sumatra or Colombian
We didn't use a decaf coffee because decaf isn't really coffee, but if you're set on it, you can use a decaf coffee
This recipe is designed for a single service (12 oz), but scales up linearly - 100 grams of coffee per 1000 ml of water will make almost 3 servings
We recommend a french press here, but you can also use a cheesecloth or other strainer
This recipe also makes fantastic coffee ice cubes that don't overpower the drinks you put them in