Hyotan Onsen
Analysis UnverifiedAn historic spring gushing forth in Kannawa, Beppu, one of Japan's premier onsen destinations. With an extremely high temperature of 97.5°C, this free-flowing spring holds the earth's powerful energy. The heat-retaining properties of this chloride spring ensure lasting warmth after your bath, gently enveloping a mind and body troubled by cold or fatigue. The weakly acidic water keeps the skin clean, while abundant metasilicic acid provides moisture. When you need to escape the daily hustle and warm yourself from the core, this onsen offers deep tranquility and vitality.
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
The source is extremely hot at 97.5°C, so it's dangerous to touch the water directly from the spout. As a chloride spring with high heat retention, avoid long soaks and stay hydrated. It's best not to rinse off the minerals after bathing to let them absorb into your skin.
The weakly acidic water, with a pH of 3.11, is traditionally associated with soothing cuts and dry skin conditions. Abundant chloride ions envelop the skin like a veil, providing restorative warmth that may help with poor circulation and sensitivity to cold. Rich in metasilicic acid (476.6 mg/kg), it's also expected to offer balneotherapy benefits, leading to silky skin.
As this is a hot spring, individuals with severe heart, lung, or kidney disease, or high blood pressure should bathe with caution. Drinking is permitted, but due to arsenic content, the total daily intake should not exceed 111mL.
※ See the analysis data below for detailed contraindications
