Organic ethanol is the same molecule as any other ethyl alcohol. What sets it apart is where it comes from and the paperwork that follows it. As Lab Alley's Types of Ethanol guide explains, USDA organic certification requires ethanol made from certified organic feedstocks such as organic corn or sugarcane, and organic food makers need to source organic ethanol to keep their own products organic.
Certified Organic Pure Ethanol is a clear, colorless liquid with a typical ethanol odor. It mixes fully with water and boils at about 78 to 80 °C. It also lights easily, with a flash point listed around 13 to 17 °C (55 to 63 °F). That's why it ships as a regulated flammable liquid, DOT UN1170, Class 3, Packing Group II. Keep it in a tightly closed container, somewhere cool and away from heat and sparks, and follow the storage section of the SDS.
Proof tells you strength. Proof is twice the alcohol percent by volume, so 190 proof is about 95% ethanol and 200 proof is absolute ethanol with the water removed. The sugar cane 190 listing, for example, shows 94.98 to 95.02% ethanol, with methanol, acetone, and esters each capped at 10 mg/L. The lot Certificates of Analysis on every product page show the tested numbers for the batch you're buying.