Decide your goal: drinking needs creamy body; baking needs structure plus similar moisture, not just “milk-like liquid.”
Pick the substitute that matches your texture priority (closest match = 1:1; thicker options = use the listed ratio or thin with water).
For baking, watch batter consistency: if it looks thicker than soy-milk would, loosen with 1–2 tablespoon water; if too thin, add 1–2 tablespoon flour or reduce mixing time.
Taste-adjust: if your recipe is sweet, choose unsweetened options; if it’s savory, avoid sweetened milks or balance with a pinch of salt.
Let batter rest 5 minutes (especially with oat/almond) to hydrate and improve final texture.