How Much to Feed 50 g of Sourdough Starter

The numbers

Flour and water to add to 50 g of starter at each ratio
Ratio	Flour	Water	Jar total	Peak at 75 °F
1:1:1	50 g	50 g	150 g	3.5 to 5 hours
1:2:2	100 g	100 g	250 g	5.5 to 8 hours
1:3:3	150 g	150 g	350 g	6 to 10 hours
1:4:4	200 g	200 g	450 g	7 to 11 hours
1:5:5	250 g	250 g	550 g	8 to 12 hours
1:10:10	500 g	500 g	1,050 g	10 to 16 hours

Amounts use 100% hydration and white flour. Change hydration or the flour mix in the tool above.

Why 50 g is a handy amount

Fifty grams fits a small jar and gives enough starter for one loaf. At 1:2:2 the jar holds 250 g, which is more than most recipes ask for. At 1:1:1 it holds 150 g, enough to bake a small loaf or two.

If you have more than 50 g in the jar, discard the extra before you feed. Use the box named Starter in my jar now to see the exact amount.

Choosing a ratio for 50 g

Pick the ratio that matches when you will be back. A 1:1:1 feeding peaks in about 4 hours at 77 °F. A 1:10:10 feeding peaks in about 12 hours. The peak column in the table uses 75 °F. Your kitchen will move it.

A larger ratio costs more flour. At 1:10:10, 50 g of starter needs 500 g of flour. If that is too much, keep a smaller amount of starter instead, for example 10 g.

Quick answers

How much flour and water do I add to 50 g of starter?

It depends on the ratio. At 1:1:1 add 50 g of each. At 1:2:2 add 100 g of each. At 1:5:5 add 250 g of each. Use the table above for every ratio.

Should the flour and water weigh the same?

At 100% hydration, yes. Equal weights of flour and water give a starter that pours slowly. For a stiffer starter, lower the hydration in the calculator.

How much to feed 50 g of sourdough starter

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