Ginger
10.0best for drinkDifferent flavor but adds similar warmth and bite
In a glass, pepper's solubility is the whole problem — piperine is hydrophobic, so a black-pepper tincture in vodka (20-40% ABV for 48 hours) suspends cleanly, while a direct dust in water clumps and sinks inside 10 seconds. Mouthfeel in a 4-6oz cocktail needs the bite to echo on the back palate without coating the tongue. This page ranks substitutes by solubility in water vs. alcohol carriers, suspension time before settling, and sweetness-balance against sugar loads of 8-12g per serving.
Different flavor but adds similar warmth and bite
Fresh grated ginger 1:1 tsp in a shrub or simple syrup (steep at 180°F for 10 minutes, strain). Gingerol is water-soluble unlike piperine, so suspension in a 4oz cocktail holds without settling. Delivers citrus-warm prickle pepper can't match in a glass; balances sugar loads of 8-12g per serving cleanly.
Any fresh hot pepper adds heat; start with less and taste, unlike pepper's even background warmth
Fresh chile slices muddled in a cocktail shaker with citrus (pH 2.3-3.0) for 10 seconds release capsaicin into the acid phase. Start with half because fresh chile bite builds over 5 minutes as the drink sits. Strain before serving to keep mouthfeel clean in a 4-6oz pour; ideal for spicy palomas or mezcal cocktails.