When is it Doubled

When you are preparing your recipe, you see that it tells you to let the bread double in bulk.

How can you tell when it is doubled?

Find a large translucent container and drop your dough into it.

Using a grease pencil or a rubber band, indicate where the top of the dough is in the container right after placing it in.

Now after an hour or so, check on it and you should be able to easily tell when it is twice as bag as it was when you started.