French press coffee ratio for every size

French press and kitchen scale on a wooden counter

For a 17 oz French press, use about 34 g of coffee: 7 level tablespoons (5 g each), or 3.4 scoops (2 tablespoons each), at 1:15. The usual French press range is 1:12 (strong) to 1:15 (standard), and 1:16 if you like it light. The general method is in our how much coffee per cup guide.

What is the French press ratio for 12, 17, 34 and 51 oz presses?

Presses are commonly sold in these four sizes. The table uses the full volume as the water amount, so the real pour is a little smaller if you leave room at the top. Grams are rounded.

Press size Water Strong 1:12 Standard 1:15 Light 1:16
12 oz (small, 1 to 2 mugs) 355 g 30 g, 6 tbsp, 3 scoops 24 g, 4.7 tbsp, 2.4 scoops 22 g, 4.4 tbsp, 2.2 scoops
17 oz (3 cup) 503 g 42 g, 8.4 tbsp, 4.2 scoops 34 g, 6.7 tbsp, 3.4 scoops 31 g, 6.3 tbsp, 3.1 scoops
34 oz (8 cup) 1,005 g 84 g, 16.8 tbsp, 8.4 scoops 67 g, 13.4 tbsp, 6.7 scoops 63 g, 12.6 tbsp, 6.3 scoops
51 oz (12 cup) 1,508 g 126 g, 25.1 tbsp, 12.6 scoops 100 g, 20 tbsp, 10 scoops 94 g, 18.9 tbsp, 9.4 scoops

Cup sizes on presses are not standard. A press sold as an 8 cup model usually holds about 34 oz, which is four 8 oz mugs, not eight. Work from the ounces on the glass. Tablespoons are only a guide because coffee packs differently by grind. A scale is better, and our note on how many grams of coffee are in a tablespoon explains why.

Why is French press stronger than drip at the same ratio?

French press steeps all the grounds in all the water, with a metal mesh filter that lets oils and fine particles through. The result is a heavier cup than a paper-filtered drip at the same ratio. That is why presses often use more coffee per water than a drip machine does, and why 1:15 here tastes about as full as 1:16 does in a paper filter. For every method on one page, see coffee ratio by brewing method: one chart.

How do you adjust the ratio?

  • Too weak: move toward 1:13 or 1:12 before changing anything else. Change the ratio before the grind, and change only one thing per brew.
  • Too bitter or heavy: move toward 1:16 and make the grind coarser.
  • Different pot size: keep the ratio and scale the grams by water. Half the water, half the coffee.

Use a coarse grind, water just off the boil, and about four minutes of steep time before you plunge slowly. Keep the press clean, since old oils change the taste. How to clean a French press shows how.

How should you measure the coffee?

Weigh it. Put the empty press on a scale, set it to zero, add coffee until you reach the grams in the table, then add the water. If you have only spoons, level them with a knife, since a heaped tablespoon can hold well over 5 g. For a 12 oz press, the difference between 24 g and 30 g is the difference between a mild cup and a strong one, so small errors show up in the taste. Write your own number on a sticky note and keep it next to the press, so the next brew starts from the same place.

How many presses does a 12 oz bag make?

A 12 oz bag is about 340 g. At 1:15 that is 10 presses of 17 oz, 5 presses of 34 oz, or 3 presses of 51 oz. For a daily 17 oz press, one bag lasts about ten days, and the longer answer on bag life is at how long a 12 oz bag of coffee lasts.

Which coffee works in a French press?

No. 1 Common Sense is the one the roaster lists for drip or French press, at 60 g per litre with water just off the boil. That is about 1:16.7, a little lighter than the table's standard row, so move toward 1:15 if you want more body. The roaster also says it takes milk without falling apart.

Our pick

No. 1 Common Sense

Huila and Medellin-Antioquia, Colombia · 1,300 to 1,500 m · Fully washed, solar dried · Castillo, Caturra, Colombia, Typica · Medium

Cocoa, red apple and brown sugar on the label, and the roaster lists French press as a method.

Order No. 1 Common Sense, $28, free US shipping

It is $28 for 12 oz, whole bean or ground, with free shipping in the US, like every coffee we sell. The subscription is 11% off, with skip or cancel in one click, and all ten coffees are on one page.

Weigh the coffee once, mark the line on your scoop, and the ratio takes care of itself.

Questions people ask

What is the best coffee to water ratio for a French press?

1:15 is a good standard, which is 34 g for a 17 oz press. Go to 1:12 for a stronger cup and 1:16 for a lighter one.

How many tablespoons of coffee for a 34 oz French press?

About 13 level tablespoons (67 g) at 1:15, or about 17 level tablespoons (84 g) at 1:12. A level tablespoon is roughly 5 g.

How many scoops of coffee for a 12 cup French press?

A 12 cup French press is commonly sold as 51 oz, which takes about 10 scoops (100 g) at 1:15, with a scoop being 2 tablespoons.

Free printable

Keep the ratio chart on your fridge

One page with grams, level tablespoons and scoops for every cup size and for coffee makers from 2 to 14 cups. Leave your email and the download link appears right here.

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