Bittman's

What's in the box: A box holds frozen, fully baked whole grain sourdough loaves that you choose yourself, ready to heat and serve.

Bittman's is a bread subscription from Mark Bittman, the longtime New York Times food columnist and author of How to Cook Everything. This is not a baking kit. You get naturally fermented whole grain sourdough that has already been fully baked, then frozen. You heat it in your oven and serve it, so warm bread takes minutes and you don't need to plan ahead. The ingredient list is short: whole grain flour, water and salt, slow fermented the traditional way. The site says the bread is high in fiber and makes some digestion claims about fermentation. Treat those as the brand's marketing, not settled fact. You build your own box, and subscribers can swap items, skip a month or cancel at any time. The site says subscribers save 10%, says shipping is free for them, and ships nationwide in the US. It does not say how many loaves come in a box or how many varieties there are, so check the shop page before you commit. If you want to learn to bake sourdough yourself, look elsewhere. If you want real whole grain sourdough with almost no effort, this is a credible choice from a well known food writer.