Baking questions, answered
Practical answers, visible sources and a useful place to go next.
How much batter goes into an 8 inch cake pan?
Depth matters. A straight-sided 8-inch round pan that is 2 inches deep holds about 1,647 ml to the rim. At an illustrative 66.7% fill, that is about 1,099 ml of batter. Measure your actual pan and follow the recipe’s fill allowance; the example is not a universal safe fill for every batter.
Can I use 2 9 inch cake pans instead of 3 8 inch pans?
At equal batter depth, compare the combined base areas: two 9-inch rounds have about 84.4% of the area of three 8-inch rounds. Scaling every weighed ingredient by about 0.844 preserves that geometric depth assumption. Putting the full batch into the smaller combined area makes a deeper layer. Check capacity and the recipe before changing pans.
Can I use a 9x5 loaf pan instead of 8x4?
At the same depth, a 9 × 5 rectangle has about 40.6% more base area than an 8 × 4 rectangle. Actual loaf pans often taper and vary in depth, so measure water capacity for a better comparison. An unchanged recipe may produce a shallower loaf in the larger pan; arithmetic alone does not determine the new bake time.
What is the best feeding ratio for sourdough starter?
The appropriate ratio depends on the maintenance routine, temperature and when the starter is needed. Ratios describe starter, flour and water by weight. A 1:2:2 feed with 20 g starter uses 40 g flour and 40 g water, for 100 g total. Use the Starter Notebook to calculate and record feeds; observe the starter instead of treating a clock reminder as proof of readiness.
What size pan can I substitute?
Compare the usable capacity and the batter depth your recipe expects. Our Pan Workshop accepts inside dimensions or measured water capacity, then applies your chosen fill allowance. If you already know the batter volume, use Find a Pan. The candidates are idealized size examples, so check the actual vessel and oven fit before baking.
How many cups of batter are in a cake pan?
Capacity depends on the inside shape and depth. One US customary cup is about 236.6 ml; a metric cup is commonly 250 ml, so name the unit. Our tool reports millilitres and uses US cups only when that unit is selected. Brimful capacity and the planned amount of batter are shown separately.