Walk into a Rajasthani or Gujarati kitchen in December and the flour has changed. Bajra where there was wheat. In Punjab, makki. In parts of the south, more ragi. Come summer, it changes back.

The tradition

In Ayurvedic classification, foods carry a warming or cooling quality, and diet is expected to shift with the season. Bajra and makki are traditionally described as warming and are eaten through the cold months; the same texts describe them as less suitable for peak summer.

This is a description of a traditional framework, not a nutritional claim of ours. We are telling you what the tradition says, not asserting what it will do.

The agricultural logic underneath

There is a more prosaic explanation running alongside. Bajra is a kharif crop, harvested around autumn. Winter is simply when it is freshest and most abundant. Eating bajra in winter is partly a tradition about warmth and partly a tradition about what has just arrived.

The two explanations are not in competition. Most durable food customs are practical arrangements that acquired an explanation.

The bit that is chemistry

Bajra is comparatively high in fat and turns faster than wheat once ground. A tradition of eating it seasonally, in small quantities, bought fresh, happens to match exactly how the flour behaves. Buying a large bag in March is working against both the tradition and the grain.

How to switch

  • Start half-and-half with wheat. Full bajra roti is an acquired texture.
  • Hot water, patted not rolled — same rules as any gluten-free flour.
  • Buy small. Three or four weeks at a time is the honest window.
  • Eat it hot. Bajra roti is markedly better straight off the tawa than reheated.