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Why Green Persimmons Taste Awful: Tannins and How to Ripen

Unripe persimmons are high in tannins, which coagulate tongue proteins causing astringency. Ripen by storing with a ripe apple or banana—ethylene gas converts tannins to non-astringent forms.

About Gardening: Honeysuckle Nectar Flavor: Universal or Species-Dependent?; Green Giant Arborvitae Shade Tolerance; Ficus Losing Deep Green Color: Light, Water, or pH?; Why Seed‑Grown Peppers Aren't Flowering Yet: Patience & Phosphorus; Green Potatoes: Are They Safe to Eat?; Growing Acidic-Tasting Tomatoes: Variety Over Soil pH; Why Cucumbers Taste Bitter and How to Prevent It; Removing Astringency from Persimmons: Traditional and Simple Methods; Removing Persimmon Astringency: From Dung Smoke to Ethylene Gas; Why Zoysiagrass Greens Up Late

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