From ancient times, acorn coffee is the best substitute for natural bean coffee. Acorns contain no caffeine, but are rich in various healthy substances. Acorn coffee generally strengthens the body, cleanses the blood, removes toxins from the body, and it is double more valuable with cinnamon. This coffee is the best from oak acorns, but the coffee powder remains fresh for a few weeks only, because some of the essential oils decompose and dissipate.
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